20579133651 has 48 divisors (see below), whose sum is σ = 28843869600. Its totient is φ = 13049164800.

The previous prime is 20579133623. The next prime is 20579133727. The reversal of 20579133651 is 15633197502.

It is not a de Polignac number, because 20579133651 - 2⁹ = 20579133139 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20579133611) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 58965825 + ... + 58966173.

It is an arithmetic number, because the mean of its divisors is an integer number (600913950).

Almost surely, 2^20579133651 is an apocalyptic number.

20579133651 is a deficient number, since it is larger than the sum of its proper divisors (8264735949).

20579133651 is a wasteful number, since it uses less digits than its factorization.

20579133651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The spelling of 20579133651 in words is "twenty billion, five hundred seventy-nine million, one hundred thirty-three thousand, six hundred fifty-one".