23550777993816 has 48 divisors (see below), whose sum is σ = 65419025880600. Its totient is φ = 7850235556944.

The previous prime is 23550777993803. The next prime is 23550777993829. The reversal of 23550777993816 is 61839977705532.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

23550777993816 is a `hidden beast` number, since 2 + 3 + 5 + 507 + 7 + 79 + 9 + 38 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (23550777993803) and next prime (23550777993829).

It is a super-2 number, since 2×23550777993816² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71157885 + ... + 71488083.

Almost surely, 2^{23550777993816} is an apocalyptic number.

It is an amenable number.

23550777993816 is an abundant number, since it is smaller than the sum of its proper divisors (41868247886784).

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

23550777993816 is an frugal number, since it uses more digits than its factorization.

23550777993816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660413 (or 330204 counting only the distinct ones).

The product of its (nonzero) digits is 600112800, while the sum is 72.

The spelling of 23550777993816 in words is "twenty-three trillion, five hundred fifty billion, seven hundred seventy-seven million, nine hundred ninety-three thousand, eight hundred sixteen".