22406158621 has 16 divisors (see below), whose sum is σ = 28081225728. Its totient is φ = 17367922800.

The previous prime is 22406158603. The next prime is 22406158631. The reversal of 22406158621 is 12685160422.

It is a cyclic number.

It is not a de Polignac number, because 22406158621 - 2⁵ = 22406158589 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 (22406158631) 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, 747045 + ... + 776458.

It is an arithmetic number, because the mean of its divisors is an integer number (1755076608).

Almost surely, 2^22406158621 is an apocalyptic number.

It is an amenable number.

22406158621 is a deficient number, since it is larger than the sum of its proper divisors (5675067107).

22406158621 is a wasteful number, since it uses less digits than its factorization.

22406158621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523712.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 22406158621 in words is "twenty-two billion, four hundred six million, one hundred fifty-eight thousand, six hundred twenty-one".