16005055500 has 144 divisors (see below), whose sum is σ = 57703673664. Its totient is φ = 3658291200.

The previous prime is 16005055477. The next prime is 16005055513. The reversal of 16005055500 is 555050061.

16005055500 is a `hidden beast` number, since 1 + 60 + 0 + 50 + 5 + 550 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222549 + ... + 285548.

It is an arithmetic number, because the mean of its divisors is an integer number (400719956).

Almost surely, 2^16005055500 is an apocalyptic number.

16005055500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16005055500 is an abundant number, since it is smaller than the sum of its proper divisors (41698618164).

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

16005055500 is a wasteful number, since it uses less digits than its factorization.

16005055500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508129 (or 508114 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 16005055500 in words is "sixteen billion, five million, fifty-five thousand, five hundred".