999999999552 has 28 divisors (see below), whose sum is σ = 2645833332656. Its totient is φ = 333333333120.

The previous prime is 999999999529. The next prime is 999999999571. The reversal of 999999999552 is 255999999999.

It is a nialpdrome in base 10.

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, 2604166474 + ... + 2604166857.

Almost surely, 2^999999999552 is an apocalyptic number.

It is an amenable number.

999999999552 is an abundant number, since it is smaller than the sum of its proper divisors (1645833333104).

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

999999999552 is a wasteful number, since it uses less digits than its factorization.

999999999552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208333346 (or 5208333336 counting only the distinct ones).

The product of its digits is 19371024450, while the sum is 93.

The spelling of 999999999552 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred fifty-two".