16161560 has 32 divisors (see below), whose sum is σ = 38504160. Its totient is φ = 6084096.

The previous prime is 16161559. The next prime is 16161569. The reversal of 16161560 is 6516161.

It is a super-2 number, since 2×16161560² = 522392043267200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16161569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11204 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (1203255).

Almost surely, 2^16161560 is an apocalyptic number.

16161560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16161560 is an abundant number, since it is smaller than the sum of its proper divisors (22342600).

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

16161560 is a wasteful number, since it uses less digits than its factorization.

16161560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23795 (or 23791 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 16161560 is about 4020.1442760180. The cubic root of 16161560 is about 252.8295080521.

The spelling of 16161560 in words is "sixteen million, one hundred sixty-one thousand, five hundred sixty".