16452665120 has 96 divisors (see below), whose sum is σ = 40379335920. Its totient is φ = 6327336960.

The previous prime is 16452665113. The next prime is 16452665137. The reversal of 16452665120 is 2156625461.

It can be written as a sum of positive squares in 8 ways, for example, as 11415640336 + 5037024784 = 106844^2 + 70972^2 .

It is a super-2 number, since 2×16452665120² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1110884 + ... + 1125596.

Almost surely, 2^16452665120 is an apocalyptic number.

16452665120 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 16452665120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20189667960).

16452665120 is an abundant number, since it is smaller than the sum of its proper divisors (23926670800).

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

16452665120 is a wasteful number, since it uses less digits than its factorization.

16452665120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14998 (or 14990 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 16452665120 in words is "sixteen billion, four hundred fifty-two million, six hundred sixty-five thousand, one hundred twenty".