16326513500 has 48 divisors (see below), whose sum is σ = 38898673632. Its totient is φ = 5936912000.

The previous prime is 16326513481. The next prime is 16326513503. The reversal of 16326513500 is 531562361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16326513503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1478729 + ... + 1489728.

It is an arithmetic number, because the mean of its divisors is an integer number (810389034).

Almost surely, 2^16326513500 is an apocalyptic number.

16326513500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16326513500 is an abundant number, since it is smaller than the sum of its proper divisors (22572160132).

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

16326513500 is a wasteful number, since it uses less digits than its factorization.

16326513500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968487 (or 2968475 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 16326513500 in words is "sixteen billion, three hundred twenty-six million, five hundred thirteen thousand, five hundred".