20555557011083 has 16 divisors (see below), whose sum is σ = 21272460580800. Its totient is φ = 19839194605440.

The previous prime is 20555557011029. The next prime is 20555557011109. The reversal of 20555557011083 is 38011075555502.

It is a cyclic number.

It is not a de Polignac number, because 20555557011083 - 2⁶ = 20555557011019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20555557011683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086493898 + ... + 1086512816.

It is an arithmetic number, because the mean of its divisors is an integer number (1329528786300).

Almost surely, 2^{20555557011083} is an apocalyptic number.

20555557011083 is a deficient number, since it is larger than the sum of its proper divisors (716903569717).

20555557011083 is a wasteful number, since it uses less digits than its factorization.

20555557011083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222.

The product of its (nonzero) digits is 1050000, while the sum is 47.

The spelling of 20555557011083 in words is "twenty trillion, five hundred fifty-five billion, five hundred fifty-seven million, eleven thousand, eighty-three".