22072157715 has 32 divisors (see below), whose sum is σ = 35687345472. Its totient is φ = 11648000000.

The previous prime is 22072157693. The next prime is 22072157777. The reversal of 22072157715 is 51775127022.

It is not a de Polignac number, because 22072157715 - 2⁶ = 22072157651 is a prime.

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, 3149215 + ... + 3156215.

It is an arithmetic number, because the mean of its divisors is an integer number (1115229546).

Almost surely, 2^22072157715 is an apocalyptic number.

22072157715 is a deficient number, since it is larger than the sum of its proper divisors (13615187757).

22072157715 is a wasteful number, since it uses less digits than its factorization.

22072157715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191.

The product of its (nonzero) digits is 68600, while the sum is 39.

The spelling of 22072157715 in words is "twenty-two billion, seventy-two million, one hundred fifty-seven thousand, seven hundred fifteen".