20771137392533 has 16 divisors (see below), whose sum is σ = 22804177116096. Its totient is φ = 18762227927040.

The previous prime is 20771137392503. The next prime is 20771137392539. The reversal of 20771137392533 is 33529373117702.

It is a cyclic number.

It is not a de Polignac number, because 20771137392533 - 2²⁰ = 20771136343957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20771137392539) 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, 150323285 + ... + 150461397.

It is an arithmetic number, because the mean of its divisors is an integer number (1425261069756).

Almost surely, 2^{20771137392533} is an apocalyptic number.

It is an amenable number.

20771137392533 is a deficient number, since it is larger than the sum of its proper divisors (2033039723563).

20771137392533 is a wasteful number, since it uses less digits than its factorization.

20771137392533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225364.

The product of its (nonzero) digits is 5000940, while the sum is 53.

The spelling of 20771137392533 in words is "twenty trillion, seven hundred seventy-one billion, one hundred thirty-seven million, three hundred ninety-two thousand, five hundred thirty-three".