64232903809536 has 320 divisors, whose sum is σ = 217370400546816. Its totient is φ = 16369079500800.

The previous prime is 64232903809519. The next prime is 64232903809579. The reversal of 64232903809536 is 63590830923246.

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 self number, because there is not a number n which added to its sum of digits gives 64232903809536.

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, 1144881 + ... + 11391951.

Almost surely, 2^{64232903809536} is an apocalyptic number.

64232903809536 is a gapful number since it is divisible by the number (66) 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 64232903809536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108685200273408).

64232903809536 is an abundant number, since it is smaller than the sum of its proper divisors (153137496737280).

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

64232903809536 is a wasteful number, since it uses less digits than its factorization.

64232903809536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10247163 (or 10247147 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 60.

The spelling of 64232903809536 in words is "sixty-four trillion, two hundred thirty-two billion, nine hundred three million, eight hundred nine thousand, five hundred thirty-six".