275525996640 has 192 divisors, whose sum is σ = 884620154880. Its totient is φ = 72069294080.

The previous prime is 275525996623. The next prime is 275525996663. The reversal of 275525996640 is 46699525572.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6693241 + ... + 6734279.

It is an arithmetic number, because the mean of its divisors is an integer number (4607396640).

Almost surely, 2^275525996640 is an apocalyptic number.

275525996640 is a gapful number since it is divisible by the number (20) 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 275525996640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442310077440).

275525996640 is an abundant number, since it is smaller than the sum of its proper divisors (609094158240).

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

275525996640 is a wasteful number, since it uses less digits than its factorization.

275525996640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41325 (or 41317 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 60.

The spelling of 275525996640 in words is "two hundred seventy-five billion, five hundred twenty-five million, nine hundred ninety-six thousand, six hundred forty".