37664166 has 8 divisors (see below), whose sum is σ = 75328344. Its totient is φ = 12554720.

The previous prime is 37664149. The next prime is 37664167. The reversal of 37664166 is 66146673.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

37664166 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37664167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138675 + ... + 3138686.

It is an arithmetic number, because the mean of its divisors is an integer number (9416043).

Almost surely, 2^37664166 is an apocalyptic number.

37664166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

37664166 is a wasteful number, since it uses less digits than its factorization.

37664166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6277366.

The product of its digits is 108864, while the sum is 39.

The square root of 37664166 is about 6137.1138167709. The cubic root of 37664166 is about 335.2042001494.

The spelling of 37664166 in words is "thirty-seven million, six hundred sixty-four thousand, one hundred sixty-six".