166425260 has 48 divisors (see below), whose sum is σ = 360823680. Its totient is φ = 64431360.

The previous prime is 166425241. The next prime is 166425269. The reversal of 166425260 is 62524661.

It is not an unprimeable number, because it can be changed into a prime (166425269) 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, 176390 + ... + 177330.

It is an arithmetic number, because the mean of its divisors is an integer number (7517160).

Almost surely, 2^166425260 is an apocalyptic number.

166425260 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 166425260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180411840).

166425260 is an abundant number, since it is smaller than the sum of its proper divisors (194398420).

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

166425260 is a wasteful number, since it uses less digits than its factorization.

166425260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1224 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 166425260 is about 12900.5914593091. The cubic root of 166425260 is about 550.0553773442.

The spelling of 166425260 in words is "one hundred sixty-six million, four hundred twenty-five thousand, two hundred sixty".