20472965133 has 16 divisors (see below), whose sum is σ = 28490688576. Its totient is φ = 13064504960.

The previous prime is 20472965129. The next prime is 20472965159. The reversal of 20472965133 is 33156927402.

It is a cyclic number.

It is not a de Polignac number, because 20472965133 - 2² = 20472965129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20472965033) 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, 1563735 + ... + 1576772.

It is an arithmetic number, because the mean of its divisors is an integer number (1780668036).

Almost surely, 2^20472965133 is an apocalyptic number.

It is an amenable number.

20472965133 is a deficient number, since it is larger than the sum of its proper divisors (8017723443).

20472965133 is a wasteful number, since it uses less digits than its factorization.

20472965133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140604.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 20472965133 in words is "twenty billion, four hundred seventy-two million, nine hundred sixty-five thousand, one hundred thirty-three".