20577174222 has 16 divisors (see below), whose sum is σ = 44895652992. Its totient is φ = 6235507320.

The previous prime is 20577174209. The next prime is 20577174271. The reversal of 20577174222 is 22247177502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155887618 + ... + 155887749.

It is an arithmetic number, because the mean of its divisors is an integer number (2805978312).

Almost surely, 2^20577174222 is an apocalyptic number.

20577174222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20577174222 is an abundant number, since it is smaller than the sum of its proper divisors (24318478770).

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

20577174222 is a wasteful number, since it uses less digits than its factorization.

20577174222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311775383.

The product of its (nonzero) digits is 109760, while the sum is 39.

The spelling of 20577174222 in words is "twenty billion, five hundred seventy-seven million, one hundred seventy-four thousand, two hundred twenty-two".