89870056560 has 60 divisors (see below), whose sum is σ = 301813609032. Its totient is φ = 23965348224.

The previous prime is 89870056519. The next prime is 89870056567. The reversal of 89870056560 is 6565007898.

89870056560 is a `hidden beast` number, since 8 + 9 + 8 + 70 + 0 + 5 + 6 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 89870056497 and 89870056506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89870056567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62409042 + ... + 62410481.

Almost surely, 2^89870056560 is an apocalyptic number.

89870056560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89870056560 is an abundant number, since it is smaller than the sum of its proper divisors (211943552472).

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

89870056560 is a wasteful number, since it uses less digits than its factorization.

89870056560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124819542 (or 124819533 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 89870056560 in words is "eighty-nine billion, eight hundred seventy million, fifty-six thousand, five hundred sixty".