23216816930 has 8 divisors (see below), whose sum is σ = 41790270492. Its totient is φ = 9286726768.

The previous prime is 23216816923. The next prime is 23216816933. The reversal of 23216816930 is 3961861232.

It can be written as a sum of positive squares in 2 ways, for example, as 20803158289 + 2413658641 = 144233^2 + 49129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×23216816930² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23216816933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160840837 + ... + 1160840856.

Almost surely, 2^23216816930 is an apocalyptic number.

23216816930 is a deficient number, since it is larger than the sum of its proper divisors (18573453562).

23216816930 is a wasteful number, since it uses less digits than its factorization.

23216816930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321681700.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 23216816930 in words is "twenty-three billion, two hundred sixteen million, eight hundred sixteen thousand, nine hundred thirty".