77546654056 has 16 divisors (see below), whose sum is σ = 145403020800. Its totient is φ = 38772515184.

The previous prime is 77546654047. The next prime is 77546654077. The reversal of 77546654056 is 65045664577.

It is a happy number.

It is a super-2 number, since 2×77546654056² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77546653988 and 77546654006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552025 + ... + 678103.

It is an arithmetic number, because the mean of its divisors is an integer number (9087688800).

Almost surely, 2^77546654056 is an apocalyptic number.

It is an amenable number.

77546654056 is a deficient number, since it is larger than the sum of its proper divisors (67856366744).

77546654056 is a wasteful number, since it uses less digits than its factorization.

77546654056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202968 (or 202964 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 77546654056 in words is "seventy-seven billion, five hundred forty-six million, six hundred fifty-four thousand, fifty-six".