16500045555 has 96 divisors (see below), whose sum is σ = 36113485824. Its totient is φ = 6790468608.

The previous prime is 16500045517. The next prime is 16500045559. The reversal of 16500045555 is 55554000561.

16500045555 is a `hidden beast` number, since 1 + 65 + 0 + 0 + 0 + 45 + 555 = 666.

It is not a de Polignac number, because 16500045555 - 2⁶ = 16500045491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16500045559) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56182 + ... + 190148.

It is an arithmetic number, because the mean of its divisors is an integer number (376182144).

Almost surely, 2^16500045555 is an apocalyptic number.

16500045555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16500045555 is an abundant number, since it is smaller than the sum of its proper divisors (19613440269).

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

16500045555 is a wasteful number, since it uses less digits than its factorization.

16500045555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134025 (or 134022 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The spelling of 16500045555 in words is "sixteen billion, five hundred million, forty-five thousand, five hundred fifty-five".