23198651564 has 12 divisors (see below), whose sum is σ = 44288334888. Its totient is φ = 10544841600.

The previous prime is 23198651549. The next prime is 23198651573. The reversal of 23198651564 is 46515689132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263620997 + ... + 263621084.

It is an arithmetic number, because the mean of its divisors is an integer number (3690694574).

Almost surely, 2^23198651564 is an apocalyptic number.

It is an amenable number.

23198651564 is a deficient number, since it is larger than the sum of its proper divisors (21089683324).

23198651564 is a wasteful number, since it uses less digits than its factorization.

23198651564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527242096 (or 527242094 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 50.

The spelling of 23198651564 in words is "twenty-three billion, one hundred ninety-eight million, six hundred fifty-one thousand, five hundred sixty-four".