20359192057 has 4 divisors (see below), whose sum is σ = 20375364240. Its totient is φ = 20343019876.

The previous prime is 20359192013. The next prime is 20359192099. The reversal of 20359192057 is 75029195302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20359192057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20359192657) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8084203 + ... + 8086720.

It is an arithmetic number, because the mean of its divisors is an integer number (5093841060).

Almost surely, 2^20359192057 is an apocalyptic number.

It is an amenable number.

20359192057 is a deficient number, since it is larger than the sum of its proper divisors (16172183).

20359192057 is a wasteful number, since it uses less digits than its factorization.

20359192057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16172182.

The product of its (nonzero) digits is 170100, while the sum is 43.

The spelling of 20359192057 in words is "twenty billion, three hundred fifty-nine million, one hundred ninety-two thousand, fifty-seven".