22554021651 has 16 divisors (see below), whose sum is σ = 35862296064. Its totient is φ = 12327663744.

The previous prime is 22554021629. The next prime is 22554021671. The reversal of 22554021651 is 15612045522.

It is not a de Polignac number, because 22554021651 - 2¹¹ = 22554019603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22554021671) 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, 23347366 + ... + 23348331.

It is an arithmetic number, because the mean of its divisors is an integer number (2241393504).

Almost surely, 2^22554021651 is an apocalyptic number.

22554021651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22554021651 is a deficient number, since it is larger than the sum of its proper divisors (13308274413).

22554021651 is a wasteful number, since it uses less digits than its factorization.

22554021651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46695730.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 22554021651 in words is "twenty-two billion, five hundred fifty-four million, twenty-one thousand, six hundred fifty-one".