21922415654 has 16 divisors (see below), whose sum is σ = 34826601888. Its totient is φ = 10313868672.

The previous prime is 21922415633. The next prime is 21922415657. The reversal of 21922415654 is 45651422912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21922415657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62519 + ... + 218525.

It is an arithmetic number, because the mean of its divisors is an integer number (2176662618).

Almost surely, 2^21922415654 is an apocalyptic number.

21922415654 is a deficient number, since it is larger than the sum of its proper divisors (12904186234).

21922415654 is a wasteful number, since it uses less digits than its factorization.

21922415654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160159.

The product of its digits is 172800, while the sum is 41.

The spelling of 21922415654 in words is "twenty-one billion, nine hundred twenty-two million, four hundred fifteen thousand, six hundred fifty-four".