20652416631 has 48 divisors (see below), whose sum is σ = 37250523648. Its totient is φ = 10711713600.

The previous prime is 20652416623. The next prime is 20652416693. The reversal of 20652416631 is 13661425602.

20652416631 is a `hidden beast` number, since 2 + 0 + 6 + 5 + 2 + 4 + 16 + 631 = 666.

It is not a de Polignac number, because 20652416631 - 2³ = 20652416623 is a prime.

It is a super-2 number, since 2×20652416631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652416231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 425341 + ... + 471401.

It is an arithmetic number, because the mean of its divisors is an integer number (776052576).

Almost surely, 2^20652416631 is an apocalyptic number.

20652416631 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20652416631 is a deficient number, since it is larger than the sum of its proper divisors (16598107017).

20652416631 is a wasteful number, since it uses less digits than its factorization.

20652416631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46732 (or 46729 counting only the distinct ones).

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

The spelling of 20652416631 in words is "twenty billion, six hundred fifty-two million, four hundred sixteen thousand, six hundred thirty-one".