20556116332 has 12 divisors (see below), whose sum is σ = 35975572360. Its totient is φ = 10277381376.

The previous prime is 20556116323. The next prime is 20556116341. The reversal of 20556116332 is 23361165502.

It is an interprime number because it is at equal distance from previous prime (20556116323) and next prime (20556116341).

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, 97482 + ... + 224977.

Almost surely, 2^20556116332 is an apocalyptic number.

It is an amenable number.

20556116332 is a deficient number, since it is larger than the sum of its proper divisors (15419456028).

20556116332 is a wasteful number, since it uses less digits than its factorization.

20556116332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338400 (or 338398 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 20556116332 in words is "twenty billion, five hundred fifty-six million, one hundred sixteen thousand, three hundred thirty-two".