20555557011084 has 48 divisors (see below), whose sum is σ = 51314994241280. Its totient is φ = 6384814943040.

The previous prime is 20555557011029. The next prime is 20555557011109. The reversal of 20555557011084 is 48011075555502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738969304 + ... + 738997119.

Almost surely, 2^{20555557011084} is an apocalyptic number.

It is an amenable number.

20555557011084 is an abundant number, since it is smaller than the sum of its proper divisors (30759437230196).

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

20555557011084 is a wasteful number, since it uses less digits than its factorization.

20555557011084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477966510 (or 1477966508 counting only the distinct ones).

The product of its (nonzero) digits is 1400000, while the sum is 48.

The spelling of 20555557011084 in words is "twenty trillion, five hundred fifty-five billion, five hundred fifty-seven million, eleven thousand, eighty-four".