166009752 has 24 divisors (see below), whose sum is σ = 449609940. Its totient is φ = 55336560.

The previous prime is 166009729. The next prime is 166009763. The reversal of 166009752 is 257900661.

166009752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1152774 + ... + 1152917.

Almost surely, 2^166009752 is an apocalyptic number.

166009752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166009752 is an abundant number, since it is smaller than the sum of its proper divisors (283600188).

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

166009752 is a wasteful number, since it uses less digits than its factorization.

166009752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305703 (or 2305696 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 166009752 is about 12884.4771721634. The cubic root of 166009752 is about 549.5972279819.

The spelling of 166009752 in words is "one hundred sixty-six million, nine thousand, seven hundred fifty-two".