20572522774 has 8 divisors (see below), whose sum is σ = 30859396200. Its totient is φ = 10286057376.

The previous prime is 20572522741. The next prime is 20572522781. The reversal of 20572522774 is 47722527502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20572522774.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125742 + ... + 238654.

It is an arithmetic number, because the mean of its divisors is an integer number (3857424525).

Almost surely, 2^20572522774 is an apocalyptic number.

20572522774 is a deficient number, since it is larger than the sum of its proper divisors (10286873426).

20572522774 is a wasteful number, since it uses less digits than its factorization.

20572522774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204014.

The product of its (nonzero) digits is 548800, while the sum is 43.

The spelling of 20572522774 in words is "twenty billion, five hundred seventy-two million, five hundred twenty-two thousand, seven hundred seventy-four".