556777796477 has 6 divisors (see below), whose sum is σ = 647680293918. Its totient is φ = 477238111224.

The previous prime is 556777796453. The next prime is 556777796539. The reversal of 556777796477 is 774697777655.

556777796477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 541852043236 + 14925753241 = 736106^2 + 122171^2 .

It is not a de Polignac number, because 556777796477 - 2⁶ = 556777796413 is a prime.

It is a super-2 number, since 2×556777796477² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 556777796398 and 556777796407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556777796447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5681406038 + ... + 5681406135.

It is an arithmetic number, because the mean of its divisors is an integer number (107946715653).

Almost surely, 2^556777796477 is an apocalyptic number.

It is an amenable number.

556777796477 is a deficient number, since it is larger than the sum of its proper divisors (90902497441).

556777796477 is a wasteful number, since it uses less digits than its factorization.

556777796477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362812187 (or 11362812180 counting only the distinct ones).

The product of its digits is 3811827600, while the sum is 77.

The spelling of 556777796477 in words is "five hundred fifty-six billion, seven hundred seventy-seven million, seven hundred ninety-six thousand, four hundred seventy-seven".