22151631663 has 24 divisors (see below), whose sum is σ = 36615904416. Its totient is φ = 12641414400.

The previous prime is 22151631647. The next prime is 22151631673. The reversal of 22151631663 is 36613615122.

22151631663 is a `hidden beast` number, since 2 + 2 + 15 + 1 + 631 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 22151631663 - 2⁴ = 22151631647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151631613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183078 + ... + 278963.

It is an arithmetic number, because the mean of its divisors is an integer number (1525662684).

Almost surely, 2^22151631663 is an apocalyptic number.

22151631663 is a deficient number, since it is larger than the sum of its proper divisors (14464272753).

22151631663 is a wasteful number, since it uses less digits than its factorization.

22151631663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462815 (or 462812 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The spelling of 22151631663 in words is "twenty-two billion, one hundred fifty-one million, six hundred thirty-one thousand, six hundred sixty-three".