16165253320 has 64 divisors (see below), whose sum is σ = 37197792000. Its totient is φ = 6319649280.

The previous prime is 16165253303. The next prime is 16165253339. The reversal of 16165253320 is 2335256161.

It is a super-2 number, since 2×16165253320² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425031 + ... + 1436329.

It is an arithmetic number, because the mean of its divisors is an integer number (581215500).

Almost surely, 2^16165253320 is an apocalyptic number.

16165253320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16165253320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18598896000).

16165253320 is an abundant number, since it is smaller than the sum of its proper divisors (21032538680).

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

16165253320 is a wasteful number, since it uses less digits than its factorization.

16165253320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12118 (or 12114 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 16165253320 in words is "sixteen billion, one hundred sixty-five million, two hundred fifty-three thousand, three hundred twenty".