20118160 has 20 divisors (see below), whose sum is σ = 46774908. Its totient is φ = 8047232.

The previous prime is 20118107. The next prime is 20118179. The reversal of 20118160 is 6181102.

It can be written as a sum of positive squares in 2 ways, for example, as 3504384 + 16613776 = 1872^2 + 4076^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125659 + ... + 125818.

Almost surely, 2^20118160 is an apocalyptic number.

20118160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20118160 is an abundant number, since it is smaller than the sum of its proper divisors (26656748).

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

20118160 is a wasteful number, since it uses less digits than its factorization.

20118160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251490 (or 251484 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 20118160 is about 4485.3271898491. The cubic root of 20118160 is about 271.9752716850.

Adding to 20118160 its reverse (6181102), we get a palindrome (26299262).

The spelling of 20118160 in words is "twenty million, one hundred eighteen thousand, one hundred sixty".