22641152623551 has 72 divisors (see below), whose sum is σ = 41320042851360. Its totient is φ = 11693650700160.

The previous prime is 22641152623547. The next prime is 22641152623559. The reversal of 22641152623551 is 15532625114622.

22641152623551 is a `hidden beast` number, since 2 + 2 + 6 + 4 + 1 + 15 + 2 + 623 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 22641152623551 - 2² = 22641152623547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22641152623497 and 22641152623506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22641152623559) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7265356 + ... + 9902913.

Almost surely, 2^{22641152623551} is an apocalyptic number.

22641152623551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22641152623551 is a deficient number, since it is larger than the sum of its proper divisors (18678890227809).

22641152623551 is a wasteful number, since it uses less digits than its factorization.

22641152623551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17168477 (or 17168463 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 22641152623551 in words is "twenty-two trillion, six hundred forty-one billion, one hundred fifty-two million, six hundred twenty-three thousand, five hundred fifty-one".