16118180 has 48 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 5820288.

The previous prime is 16118173. The next prime is 16118183. The reversal of 16118180 is 8181161.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (16118183) 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, 11561 + ... + 12879.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 2^16118180 is an apocalyptic number.

16118180 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 16118180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18627840).

16118180 is an abundant number, since it is smaller than the sum of its proper divisors (21137500).

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

16118180 is a wasteful number, since it uses less digits than its factorization.

16118180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 16118180 is about 4014.7453219351. The cubic root of 16118180 is about 252.6030948484.

The spelling of 16118180 in words is "sixteen million, one hundred eighteen thousand, one hundred eighty".