23966608690 has 8 divisors (see below), whose sum is σ = 43139895660. Its totient is φ = 9586643472.

The previous prime is 23966608657. The next prime is 23966608691. The reversal of 23966608690 is 9680666932.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20851071201 + 3115537489 = 144399^2 + 55817^2 .

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

It is a super-2 number, since 2×23966608690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23966608691) 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, 1198330425 + ... + 1198330444.

Almost surely, 2^23966608690 is an apocalyptic number.

23966608690 is a deficient number, since it is larger than the sum of its proper divisors (19173286970).

23966608690 is a wasteful number, since it uses less digits than its factorization.

23966608690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396660876.

The product of its (nonzero) digits is 5038848, while the sum is 55.

The spelling of 23966608690 in words is "twenty-three billion, nine hundred sixty-six million, six hundred eight thousand, six hundred ninety".