31770564220056 has 16 divisors (see below), whose sum is σ = 79426410550200. Its totient is φ = 10590188073344.

The previous prime is 31770564220037. The next prime is 31770564220103. The reversal of 31770564220056 is 65002246507713.

It is a junction number, because it is equal to n+sod(n) for n = 31770564219987 and 31770564220014.

It is a congruent number.

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, 661886754561 + ... + 661886754608.

Almost surely, 2^{31770564220056} is an apocalyptic number.

It is an amenable number.

31770564220056 is an abundant number, since it is smaller than the sum of its proper divisors (47655846330144).

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

31770564220056 is a wasteful number, since it uses less digits than its factorization.

31770564220056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323773509178 (or 1323773509174 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 31770564220056 in words is "thirty-one trillion, seven hundred seventy billion, five hundred sixty-four million, two hundred twenty thousand, fifty-six".