20536567364 has 12 divisors (see below), whose sum is σ = 35966583744. Its totient is φ = 10260400584.

The previous prime is 20536567361. The next prime is 20536567481. The reversal of 20536567364 is 46376563502.

It is a super-2 number, since 2×20536567364² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20536567361) 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, 1964912 + ... + 1975335.

It is an arithmetic number, because the mean of its divisors is an integer number (2997215312).

Almost surely, 2^20536567364 is an apocalyptic number.

It is an amenable number.

20536567364 is a deficient number, since it is larger than the sum of its proper divisors (15430016380).

20536567364 is a wasteful number, since it uses less digits than its factorization.

20536567364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941554 (or 3941552 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 20536567364 in words is "twenty billion, five hundred thirty-six million, five hundred sixty-seven thousand, three hundred sixty-four".