22646352091 has 16 divisors (see below), whose sum is σ = 25507012608. Its totient is φ = 19927252800.

The previous prime is 22646352067. The next prime is 22646352101. The reversal of 22646352091 is 19025364622.

It is a cyclic number.

It is not a de Polignac number, because 22646352091 - 2⁷ = 22646351963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22646352011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140415 + ... + 254968.

It is an arithmetic number, because the mean of its divisors is an integer number (1594188288).

Almost surely, 2^22646352091 is an apocalyptic number.

22646352091 is a deficient number, since it is larger than the sum of its proper divisors (2860660517).

22646352091 is a wasteful number, since it uses less digits than its factorization.

22646352091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395562.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 22646352091 in words is "twenty-two billion, six hundred forty-six million, three hundred fifty-two thousand, ninety-one".