16160533965 has 112 divisors (see below), whose sum is σ = 31541828976. Its totient is φ = 7912857600.

The previous prime is 16160533951. The next prime is 16160533969. The reversal of 16160533965 is 56933506161.

16160533965 is a `hidden beast` number, since 1 + 6 + 1 + 605 + 3 + 39 + 6 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1776369609 + 14384164356 = 42147^2 + 119934^2 .

It is not a de Polignac number, because 16160533965 - 2²⁷ = 16026316237 is a prime.

It is a super-2 number, since 2×16160533965² (a number of 21 digits) contains 22 as substring.

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 16160533965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16160533969) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2537385 + ... + 2543745.

It is an arithmetic number, because the mean of its divisors is an integer number (281623473).

Almost surely, 2^16160533965 is an apocalyptic number.

16160533965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16160533965 is a deficient number, since it is larger than the sum of its proper divisors (15381295011).

16160533965 is an equidigital number, since it uses as much as digits as its factorization.

16160533965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442 (or 6427 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The spelling of 16160533965 in words is "sixteen billion, one hundred sixty million, five hundred thirty-three thousand, nine hundred sixty-five".