56771572617662 has 32 divisors (see below), whose sum is σ = 97467555742464. Its totient is φ = 24294461932800.

The previous prime is 56771572617619. The next prime is 56771572617679. The reversal of 56771572617662 is 26671627517765.

It is a super-2 number, since 2×56771572617662² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56771572617592 and 56771572617601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264583073 + ... + 264797555.

It is an arithmetic number, because the mean of its divisors is an integer number (3045861116952).

Almost surely, 2^{56771572617662} is an apocalyptic number.

56771572617662 is a deficient number, since it is larger than the sum of its proper divisors (40695983124802).

56771572617662 is a wasteful number, since it uses less digits than its factorization.

56771572617662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242544.

The product of its digits is 311169600, while the sum is 68.

The spelling of 56771572617662 in words is "fifty-six trillion, seven hundred seventy-one billion, five hundred seventy-two million, six hundred seventeen thousand, six hundred sixty-two".