740155328640 has 2048 divisors, whose sum is σ = 3357888307200. Its totient is φ = 149957443584.

The previous prime is 740155328639. The next prime is 740155328641. The reversal of 740155328640 is 46823551047.

740155328640 is a `hidden beast` number, since 7 + 40 + 15 + 532 + 8 + 64 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (740155328639) and next prime (740155328641).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (740155328641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 6917339467 + ... + 6917339573.

It is an arithmetic number, because the mean of its divisors is an integer number (1639593900).

Almost surely, 2^740155328640 is an apocalyptic number.

740155328640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740155328640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678944153600).

740155328640 is an abundant number, since it is smaller than the sum of its proper divisors (2617732978560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740155328640 is a wasteful number, since it uses less digits than its factorization.

740155328640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

Adding to 740155328640 its reverse (46823551047), we get a palindrome (786978879687).

The spelling of 740155328640 in words is "seven hundred forty billion, one hundred fifty-five million, three hundred twenty-eight thousand, six hundred forty".