20551352110992 has 200 divisors, whose sum is σ = 63581581768320. Its totient is φ = 6392785006080.

The previous prime is 20551352110963. The next prime is 20551352110999. The reversal of 20551352110992 is 29901125315502.

20551352110992 is a `hidden beast` number, since 2 + 0 + 5 + 5 + 13 + 521 + 109 + 9 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (20551352110999) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7185892 + ... + 9630147.

Almost surely, 2^{20551352110992} is an apocalyptic number.

It is an amenable number.

20551352110992 is an abundant number, since it is smaller than the sum of its proper divisors (43030229657328).

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

20551352110992 is a wasteful number, since it uses less digits than its factorization.

20551352110992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16816123 (or 16816108 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 45.

The spelling of 20551352110992 in words is "twenty trillion, five hundred fifty-one billion, three hundred fifty-two million, one hundred ten thousand, nine hundred ninety-two".