20461097051 has 16 divisors (see below), whose sum is σ = 21201355200. Its totient is φ = 19731288960.

The previous prime is 20461097047. The next prime is 20461097053. The reversal of 20461097051 is 15079016402.

It is not a de Polignac number, because 20461097051 - 2² = 20461097047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20461097053) 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, 2681021 + ... + 2688641.

It is an arithmetic number, because the mean of its divisors is an integer number (1325084700).

Almost surely, 2^20461097051 is an apocalyptic number.

20461097051 is a deficient number, since it is larger than the sum of its proper divisors (740258149).

20461097051 is a wasteful number, since it uses less digits than its factorization.

20461097051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8294.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 20461097051 in words is "twenty billion, four hundred sixty-one million, ninety-seven thousand, fifty-one".