256562071516 has 12 divisors (see below), whose sum is σ = 449845401600. Its totient is φ = 128034813920.

The previous prime is 256562071511. The next prime is 256562071531. The reversal of 256562071516 is 615170265652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256562071511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61553116 + ... + 61557283.

It is an arithmetic number, because the mean of its divisors is an integer number (37487116800).

Almost surely, 2^256562071516 is an apocalyptic number.

It is an amenable number.

256562071516 is a deficient number, since it is larger than the sum of its proper divisors (193283330084).

256562071516 is a wasteful number, since it uses less digits than its factorization.

256562071516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123110924 (or 123110922 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 256562071516 in words is "two hundred fifty-six billion, five hundred sixty-two million, seventy-one thousand, five hundred sixteen".