22154636051 has 4 divisors (see below), whose sum is σ = 22155588552. Its totient is φ = 22153683552.

The previous prime is 22154636041. The next prime is 22154636071. The reversal of 22154636051 is 15063645122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22154636051 - 2³⁰ = 21080894227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22154636041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440465 + ... + 488178.

It is an arithmetic number, because the mean of its divisors is an integer number (5538897138).

Almost surely, 2^22154636051 is an apocalyptic number.

22154636051 is a deficient number, since it is larger than the sum of its proper divisors (952501).

22154636051 is an equidigital number, since it uses as much as digits as its factorization.

22154636051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952500.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 22154636051 in words is "twenty-two billion, one hundred fifty-four million, six hundred thirty-six thousand, fifty-one".