20556190962 has 16 divisors (see below), whose sum is σ = 45680424480. Its totient is φ = 6852063636.

The previous prime is 20556190939. The next prime is 20556190987. The reversal of 20556190962 is 26909165502.

It is a happy number.

20556190962 is a `hidden beast` number, since 2 + 0 + 556 + 1 + 9 + 0 + 96 + 2 = 666.

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, 190335048 + ... + 190335155.

It is an arithmetic number, because the mean of its divisors is an integer number (2855026530).

Almost surely, 2^20556190962 is an apocalyptic number.

20556190962 is an abundant number, since it is smaller than the sum of its proper divisors (25124233518).

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

20556190962 is a wasteful number, since it uses less digits than its factorization.

20556190962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380670214 (or 380670208 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 20556190962 in words is "twenty billion, five hundred fifty-six million, one hundred ninety thousand, nine hundred sixty-two".