166361204 has 6 divisors (see below), whose sum is σ = 291132114. Its totient is φ = 83180600.

The previous prime is 166361161. The next prime is 166361219. The reversal of 166361204 is 402163661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 148888804 + 17472400 = 12202^2 + 4180^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20795147 + ... + 20795154.

It is an arithmetic number, because the mean of its divisors is an integer number (48522019).

Almost surely, 2^166361204 is an apocalyptic number.

It is an amenable number.

166361204 is a deficient number, since it is larger than the sum of its proper divisors (124770910).

166361204 is a wasteful number, since it uses less digits than its factorization.

166361204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41590305 (or 41590303 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 166361204 is about 12898.1085435036. The cubic root of 166361204 is about 549.9847973759.

The spelling of 166361204 in words is "one hundred sixty-six million, three hundred sixty-one thousand, two hundred four".