15323663552 has 28 divisors (see below), whose sum is σ = 32008312920. Its totient is φ = 7258576896.

The previous prime is 15323663519. The next prime is 15323663557. The reversal of 15323663552 is 25536632351.

It is not an unprimeable number, because it can be changed into a prime (15323663557) 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, 6299633 + ... + 6302064.

Almost surely, 2^15323663552 is an apocalyptic number.

It is an amenable number.

15323663552 is an abundant number, since it is smaller than the sum of its proper divisors (16684649368).

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

15323663552 is a wasteful number, since it uses less digits than its factorization.

15323663552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12601728 (or 12601718 counting only the distinct ones).

The product of its digits is 486000, while the sum is 41.

The spelling of 15323663552 in words is "fifteen billion, three hundred twenty-three million, six hundred sixty-three thousand, five hundred fifty-two".