20555557011082 has 4 divisors (see below), whose sum is σ = 30833335516626. Its totient is φ = 10277778505540.

The previous prime is 20555557011029. The next prime is 20555557011109. The reversal of 20555557011082 is 28011075555502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10415975209641 + 10139581801441 = 3227379^2 + 3184271^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5138889252769 + ... + 5138889252772.

Almost surely, 2^{20555557011082} is an apocalyptic number.

20555557011082 is a deficient number, since it is larger than the sum of its proper divisors (10277778505544).

20555557011082 is a wasteful number, since it uses less digits than its factorization.

20555557011082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277778505543.

The product of its (nonzero) digits is 700000, while the sum is 46.

The spelling of 20555557011082 in words is "twenty trillion, five hundred fifty-five billion, five hundred fifty-seven million, eleven thousand, eighty-two".