16121360 has 20 divisors (see below), whose sum is σ = 37482348. Its totient is φ = 6448512.

The previous prime is 16121341. The next prime is 16121363. The reversal of 16121360 is 6312161.

It can be written as a sum of positive squares in 2 ways, for example, as 11316496 + 4804864 = 3364^2 + 2192^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (16121363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100679 + ... + 100838.

Almost surely, 2^16121360 is an apocalyptic number.

16121360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16121360 is an abundant number, since it is smaller than the sum of its proper divisors (21360988).

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

16121360 is a wasteful number, since it uses less digits than its factorization.

16121360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201530 (or 201524 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 16121360 is about 4015.1413424685. The cubic root of 16121360 is about 252.6197060088.

The spelling of 16121360 in words is "sixteen million, one hundred twenty-one thousand, three hundred sixty".