70561507056 has 20 divisors (see below), whose sum is σ = 182283893352. Its totient is φ = 23520502336.

The previous prime is 70561507043. The next prime is 70561507063. The reversal of 70561507056 is 65070516507.

It is a junction number, because it is equal to n+sod(n) for n = 70561506999 and 70561507017.

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, 735015651 + ... + 735015746.

Almost surely, 2^70561507056 is an apocalyptic number.

It is an amenable number.

70561507056 is an abundant number, since it is smaller than the sum of its proper divisors (111722386296).

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

70561507056 is a wasteful number, since it uses less digits than its factorization.

70561507056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470031408 (or 1470031402 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 42.

The spelling of 70561507056 in words is "seventy billion, five hundred sixty-one million, five hundred seven thousand, fifty-six".