20402291059 has 16 divisors (see below), whose sum is σ = 21357527040. Its totient is φ = 19452866400.

The previous prime is 20402291057. The next prime is 20402291083. The reversal of 20402291059 is 95019220402.

It is not a de Polignac number, because 20402291059 - 2¹ = 20402291057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20402291057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17725134 + ... + 17726284.

It is an arithmetic number, because the mean of its divisors is an integer number (1334845440).

Almost surely, 2^20402291059 is an apocalyptic number.

20402291059 is a deficient number, since it is larger than the sum of its proper divisors (955235981).

20402291059 is a wasteful number, since it uses less digits than its factorization.

20402291059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 20402291059 in words is "twenty billion, four hundred two million, two hundred ninety-one thousand, fifty-nine".