16645150120 has 64 divisors (see below), whose sum is σ = 37635872400. Its totient is φ = 6625382400.

The previous prime is 16645150079. The next prime is 16645150129. The reversal of 16645150120 is 2105154661.

It can be written as a sum of positive squares in 8 ways, for example, as 16016004 + 16629134116 = 4002^2 + 128954^2 .

It is a super-2 number, since 2×16645150120² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16645150129) 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, 12793470 + ... + 12794770.

Almost surely, 2^16645150120 is an apocalyptic number.

16645150120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16645150120 is an abundant number, since it is smaller than the sum of its proper divisors (20990722280).

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

16645150120 is a wasteful number, since it uses less digits than its factorization.

16645150120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638 (or 2634 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 16645150120 in words is "sixteen billion, six hundred forty-five million, one hundred fifty thousand, one hundred twenty".