20290345083 has 12 divisors (see below), whose sum is σ = 29436262960. Its totient is φ = 13467825936.

The previous prime is 20290345073. The next prime is 20290345093. The reversal of 20290345083 is 38054309202.

20290345083 is a `hidden beast` number, since 20 + 290 + 345 + 0 + 8 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (20290345073) and next prime (20290345093).

It is not a de Polignac number, because 20290345083 - 2²⁵ = 20256790651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20290345013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4920391 + ... + 4924512.

Almost surely, 2^20290345083 is an apocalyptic number.

20290345083 is a deficient number, since it is larger than the sum of its proper divisors (9145917877).

20290345083 is a wasteful number, since it uses less digits than its factorization.

20290345083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845138 (or 9845135 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 20290345083 in words is "twenty billion, two hundred ninety million, three hundred forty-five thousand, eighty-three".