16125580 has 36 divisors (see below), whose sum is σ = 35033040. Its totient is φ = 6234720.

The previous prime is 16125541. The next prime is 16125581. The reversal of 16125580 is 8552161.

16125580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (16125581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18801 + ... + 19639.

It is an arithmetic number, because the mean of its divisors is an integer number (973140).

Almost surely, 2^16125580 is an apocalyptic number.

16125580 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 16125580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17516520).

16125580 is an abundant number, since it is smaller than the sum of its proper divisors (18907460).

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

16125580 is a wasteful number, since it uses less digits than its factorization.

16125580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 16125580 is about 4015.6668188484. Note that the first 3 decimals coincide. The cubic root of 16125580 is about 252.6417463775.

The spelling of 16125580 in words is "sixteen million, one hundred twenty-five thousand, five hundred eighty".