240012512656 has 60 divisors (see below), whose sum is σ = 542957999580. Its totient is φ = 102480026880.

The previous prime is 240012512653. The next prime is 240012512657. The reversal of 240012512656 is 656215210042.

It can be written as a sum of positive squares in 2 ways, for example, as 71173702656 + 168838810000 = 266784^2 + 410900^2 .

It is not an unprimeable number, because it can be changed into a prime (240012512653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358135 + ... + 779926.

It is an arithmetic number, because the mean of its divisors is an integer number (9049299993).

Almost surely, 2^240012512656 is an apocalyptic number.

It is an amenable number.

240012512656 is an abundant number, since it is smaller than the sum of its proper divisors (302945486924).

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

240012512656 is a wasteful number, since it uses less digits than its factorization.

240012512656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138352 (or 1138339 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 240012512656 its reverse (656215210042), we get a palindrome (896227722698).

The spelling of 240012512656 in words is "two hundred forty billion, twelve million, five hundred twelve thousand, six hundred fifty-six".