23903633664 has 81 divisors (see below), whose sum is σ = 68941472509. Its totient is φ = 7965404160.

The previous prime is 23903633627. The next prime is 23903633723. The reversal of 23903633664 is 46633630932.

The square root of 23903633664 is 154608.

It is a perfect power (a square), and thus also a powerful number.

23903633664 is a `hidden beast` number, since 2 + 3 + 9 + 0 + 3 + 633 + 6 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18439467264 + 5464166400 = 135792^2 + 73920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7419574 + ... + 7422794.

Almost surely, 2^23903633664 is an apocalyptic number.

23903633664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

23903633664 is the 154608-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23903633664

23903633664 is an abundant number, since it is smaller than the sum of its proper divisors (45037838845).

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

23903633664 is an frugal number, since it uses more digits than its factorization.

23903633664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6464 (or 3226 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 45.

The spelling of 23903633664 in words is "twenty-three billion, nine hundred three million, six hundred thirty-three thousand, six hundred sixty-four".