2180056587664 has 20 divisors (see below), whose sum is σ = 4224063285504. Its totient is φ = 1089975739808.

The previous prime is 2180056587547. The next prime is 2180056587707. The reversal of 2180056587664 is 4667856500812.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2180056587599 and 2180056587608.

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, 2941312 + ... + 3607135.

Almost surely, 2^{2180056587664} is an apocalyptic number.

It is an amenable number.

2180056587664 is a deficient number, since it is larger than the sum of its proper divisors (2044006697840).

2180056587664 is a wasteful number, since it uses less digits than its factorization.

2180056587664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6569262 (or 6569256 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 58.

The spelling of 2180056587664 in words is "two trillion, one hundred eighty billion, fifty-six million, five hundred eighty-seven thousand, six hundred sixty-four".