22155765015 has 32 divisors (see below), whose sum is σ = 37574767296. Its totient is φ = 11109386240.

The previous prime is 22155765001. The next prime is 22155765017. The reversal of 22155765015 is 51056755122.

It is not a de Polignac number, because 22155765015 - 2⁴ = 22155764999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155765017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193789 + ... + 286121.

It is an arithmetic number, because the mean of its divisors is an integer number (1174211478).

Almost surely, 2^22155765015 is an apocalyptic number.

22155765015 is a deficient number, since it is larger than the sum of its proper divisors (15419002281).

22155765015 is a wasteful number, since it uses less digits than its factorization.

22155765015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93299.

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 22155765015 in words is "twenty-two billion, one hundred fifty-five million, seven hundred sixty-five thousand, fifteen".