23660694540 has 120 divisors (see below), whose sum is σ = 84828012192. Its totient is φ = 5408156160.

The previous prime is 23660694461. The next prime is 23660694553. The reversal of 23660694540 is 4549606632.

23660694540 is a `hidden beast` number, since 2 + 36 + 606 + 9 + 4 + 5 + 4 + 0 = 666.

It is a super-2 number, since 2×23660694540² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1031901 + ... + 1054580.

Almost surely, 2^23660694540 is an apocalyptic number.

23660694540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23660694540 is an abundant number, since it is smaller than the sum of its proper divisors (61167317652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23660694540 is a wasteful number, since it uses less digits than its factorization.

23660694540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086509 (or 2086498 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 23660694540 in words is "twenty-three billion, six hundred sixty million, six hundred ninety-four thousand, five hundred forty".