56071666672216 has 32 divisors (see below), whose sum is σ = 113227477574400. Its totient is φ = 25877895240960.

The previous prime is 56071666672207. The next prime is 56071666672223. The reversal of 56071666672216 is 61227666617065.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11885421 + ... + 15918748.

It is an arithmetic number, because the mean of its divisors is an integer number (3538358674200).

Almost surely, 2^{56071666672216} is an apocalyptic number.

It is an amenable number.

56071666672216 is an abundant number, since it is smaller than the sum of its proper divisors (57155810902184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56071666672216 is a wasteful number, since it uses less digits than its factorization.

56071666672216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27823579 (or 27823575 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 56071666672216 in words is "fifty-six trillion, seventy-one billion, six hundred sixty-six million, six hundred seventy-two thousand, two hundred sixteen".