64004502240 has 960 divisors, whose sum is σ = 279468693504. Its totient is φ = 13460815872.

The previous prime is 64004502197. The next prime is 64004502241. The reversal of 64004502240 is 4220540046.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64004502241) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 72484839 + ... + 72485721.

Almost surely, 2^64004502240 is an apocalyptic number.

64004502240 is a gapful number since it is divisible by the number (60) 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 64004502240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139734346752).

64004502240 is an abundant number, since it is smaller than the sum of its proper divisors (215464191264).

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

64004502240 is a wasteful number, since it uses less digits than its factorization.

64004502240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The spelling of 64004502240 in words is "sixty-four billion, four million, five hundred two thousand, two hundred forty".