22076313561 has 21 divisors (see below), whose sum is σ = 33105344709. Its totient is φ = 14714867916.

The previous prime is 22076313533. The next prime is 22076313587. The reversal of 22076313561 is 16531367022.

The square root of 22076313561 is 148581.

It is a perfect power (a square), and thus also a powerful number.

22076313561 is a `hidden beast` number, since 2 + 20 + 7 + 63 + 13 + 561 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-22076313561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22076313521) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 4008936 + ... + 4014438.

Almost surely, 2^22076313561 is an apocalyptic number.

22076313561 is the 148581-st square number.

22076313561 is the 74291-st centered octagonal number.

It is an amenable number.

22076313561 is a deficient number, since it is larger than the sum of its proper divisors (11029031148).

22076313561 is an frugal number, since it uses more digits than its factorization.

22076313561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024 (or 5506 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Multiplying 22076313561 by its sum of digits (36), we get a square (794747288196 = 891486²).

The spelling of 22076313561 in words is "twenty-two billion, seventy-six million, three hundred thirteen thousand, five hundred sixty-one".