22651415621 has 8 divisors (see below), whose sum is σ = 24000182784. Its totient is φ = 21304463040.

The previous prime is 22651415603. The next prime is 22651415623. The reversal of 22651415621 is 12651415622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22651415621 - 2¹⁴ = 22651399237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22651415623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427895 + ... + 477908.

It is an arithmetic number, because the mean of its divisors is an integer number (3000022848).

Almost surely, 2^22651415621 is an apocalyptic number.

It is an amenable number.

22651415621 is a deficient number, since it is larger than the sum of its proper divisors (1348767163).

22651415621 is a wasteful number, since it uses less digits than its factorization.

22651415621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907291.

The product of its digits is 28800, while the sum is 35.

Subtracting from 22651415621 its reverse (12651415622), we obtain a palindrome (9999999999).

The spelling of 22651415621 in words is "twenty-two billion, six hundred fifty-one million, four hundred fifteen thousand, six hundred twenty-one".