23157238866 has 16 divisors (see below), whose sum is σ = 47099469600. Its totient is φ = 7588247648.

The previous prime is 23157238859. The next prime is 23157238873. The reversal of 23157238866 is 66883275132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23157238859) and next prime (23157238873).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32707611 + ... + 32708318.

It is an arithmetic number, because the mean of its divisors is an integer number (2943716850).

Almost surely, 2^23157238866 is an apocalyptic number.

23157238866 is an abundant number, since it is smaller than the sum of its proper divisors (23942230734).

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

23157238866 is a wasteful number, since it uses less digits than its factorization.

23157238866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65415993.

The product of its digits is 2903040, while the sum is 51.

The spelling of 23157238866 in words is "twenty-three billion, one hundred fifty-seven million, two hundred thirty-eight thousand, eight hundred sixty-six".