16161180 has 144 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 3518592.

The previous prime is 16161161. The next prime is 16161181. The reversal of 16161180 is 8116161.

It is a super-2 number, since 2×16161180² = 522367477984800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16161180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16161181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67501 + ... + 67739.

It is an arithmetic number, because the mean of its divisors is an integer number (383040).

Almost surely, 2^16161180 is an apocalyptic number.

16161180 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 16161180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27578880).

16161180 is an abundant number, since it is smaller than the sum of its proper divisors (38996580).

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

16161180 is a wasteful number, since it uses less digits than its factorization.

16161180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 16161180 is about 4020.0970137548. The cubic root of 16161180 is about 252.8275264784.

The spelling of 16161180 in words is "sixteen million, one hundred sixty-one thousand, one hundred eighty".