23656404850551 has 80 divisors (see below), whose sum is σ = 40913175951648. Its totient is φ = 13462682112000.

The previous prime is 23656404850531. The next prime is 23656404850597. The reversal of 23656404850551 is 15505840465632.

23656404850551 is a `hidden beast` number, since 2 + 3 + 6 + 5 + 6 + 4 + 0 + 4 + 85 + 0 + 551 = 666.

It is not a de Polignac number, because 23656404850551 - 2¹³ = 23656404842359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23656404850501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4755201 + ... + 8362101.

Almost surely, 2^{23656404850551} is an apocalyptic number.

23656404850551 is a deficient number, since it is larger than the sum of its proper divisors (17256771101097).

23656404850551 is a wasteful number, since it uses less digits than its factorization.

23656404850551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607374 (or 3607365 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 54.

The spelling of 23656404850551 in words is "twenty-three trillion, six hundred fifty-six billion, four hundred four million, eight hundred fifty thousand, five hundred fifty-one".