166651230 has 32 divisors (see below), whose sum is σ = 409267584. Its totient is φ = 43406496.

The previous prime is 166651217. The next prime is 166651241. The reversal of 166651230 is 32156661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63304 + ... + 65883.

It is an arithmetic number, because the mean of its divisors is an integer number (12789612).

Almost surely, 2^166651230 is an apocalyptic number.

166651230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166651230 is an abundant number, since it is smaller than the sum of its proper divisors (242616354).

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

166651230 is a wasteful number, since it uses less digits than its factorization.

166651230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129240.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 166651230 is about 12909.3466139848. The cubic root of 166651230 is about 550.3042173744.

The spelling of 166651230 in words is "one hundred sixty-six million, six hundred fifty-one thousand, two hundred thirty".