22106147765 has 32 divisors (see below), whose sum is σ = 29141072352. Its totient is φ = 15998976000.

The previous prime is 22106147729. The next prime is 22106147779. The reversal of 22106147765 is 56774160122.

It can be written as a sum of positive squares in 16 ways, for example, as 19476714481 + 2629433284 = 139559^2 + 51278^2 .

It is not a de Polignac number, because 22106147765 - 2³⁰ = 21032405941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1104245 + ... + 1124085.

It is an arithmetic number, because the mean of its divisors is an integer number (910658511).

Almost surely, 2^22106147765 is an apocalyptic number.

It is an amenable number.

22106147765 is a deficient number, since it is larger than the sum of its proper divisors (7034924587).

22106147765 is a wasteful number, since it uses less digits than its factorization.

22106147765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20201.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 22106147765 in words is "twenty-two billion, one hundred six million, one hundred forty-seven thousand, seven hundred sixty-five".