23664407553 has 16 divisors (see below), whose sum is σ = 35060778240. Its totient is φ = 15775193232.

The previous prime is 23664407539. The next prime is 23664407567. The reversal of 23664407553 is 35570446632.

23664407553 is a `hidden beast` number, since 2 + 36 + 64 + 4 + 0 + 7 + 553 = 666.

It is an interprime number because it is at equal distance from previous prime (23664407539) and next prime (23664407567).

It is not a de Polignac number, because 23664407553 - 2⁵ = 23664407521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23664407499 and 23664407508.

It is not an unprimeable number, because it can be changed into a prime (23664407453) 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, 667800 + ... + 702342.

It is an arithmetic number, because the mean of its divisors is an integer number (2191298640).

Almost surely, 2^23664407553 is an apocalyptic number.

It is an amenable number.

23664407553 is a deficient number, since it is larger than the sum of its proper divisors (11396370687).

23664407553 is a wasteful number, since it uses less digits than its factorization.

23664407553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59925 (or 59919 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

The spelling of 23664407553 in words is "twenty-three billion, six hundred sixty-four million, four hundred seven thousand, five hundred fifty-three".