20995499204 has 12 divisors (see below), whose sum is σ = 36760969728. Its totient is φ = 10492365000.

The previous prime is 20995499201. The next prime is 20995499207. The reversal of 20995499204 is 40299459902.

It is an interprime number because it is at equal distance from previous prime (20995499201) and next prime (20995499207).

It is not an unprimeable number, because it can be changed into a prime (20995499201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337372 + ... + 1352979.

It is an arithmetic number, because the mean of its divisors is an integer number (3063414144).

Almost surely, 2^20995499204 is an apocalyptic number.

It is an amenable number.

20995499204 is a deficient number, since it is larger than the sum of its proper divisors (15765470524).

20995499204 is a wasteful number, since it uses less digits than its factorization.

20995499204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692306 (or 2692304 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 20995499204 in words is "twenty billion, nine hundred ninety-five million, four hundred ninety-nine thousand, two hundred four".