16502380965 has 96 divisors (see below), whose sum is σ = 34227360000. Its totient is φ = 7521849216.

The previous prime is 16502380957. The next prime is 16502380969. The reversal of 16502380965 is 56908320561.

16502380965 is a `hidden beast` number, since 1 + 6 + 502 + 3 + 80 + 9 + 65 = 666.

It is not a de Polignac number, because 16502380965 - 2³ = 16502380957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16502380965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16502380969) 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, 2371311 + ... + 2378259.

It is an arithmetic number, because the mean of its divisors is an integer number (356535000).

Almost surely, 2^16502380965 is an apocalyptic number.

16502380965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16502380965 is an abundant number, since it is smaller than the sum of its proper divisors (17724979035).

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

16502380965 is a wasteful number, since it uses less digits than its factorization.

16502380965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7336 (or 7323 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 16502380965 in words is "sixteen billion, five hundred two million, three hundred eighty thousand, nine hundred sixty-five".