22640156651 has 32 divisors (see below), whose sum is σ = 27563120640. Its totient is φ = 18175981824.

The previous prime is 22640156647. The next prime is 22640156689. The reversal of 22640156651 is 15665104622.

It is not a de Polignac number, because 22640156651 - 2² = 22640156647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22640155651) 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, 4852946 + ... + 4857608.

It is an arithmetic number, because the mean of its divisors is an integer number (861347520).

Almost surely, 2^22640156651 is an apocalyptic number.

22640156651 is a deficient number, since it is larger than the sum of its proper divisors (4922963989).

22640156651 is a wasteful number, since it uses less digits than its factorization.

22640156651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5315.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 22640156651 in words is "twenty-two billion, six hundred forty million, one hundred fifty-six thousand, six hundred fifty-one".