166660662 has 48 divisors (see below), whose sum is σ = 394139952. Its totient is φ = 46831680.

The previous prime is 166660657. The next prime is 166660667. The reversal of 166660662 is 266066661.

It is an interprime number because it is at equal distance from previous prime (166660657) and next prime (166660667).

It is a self number, because there is not a number n which added to its sum of digits gives 166660662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166660667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13288 + ... + 22580.

It is an arithmetic number, because the mean of its divisors is an integer number (8211249).

Almost surely, 2^166660662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166660662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197069976).

166660662 is an abundant number, since it is smaller than the sum of its proper divisors (227479290).

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

166660662 is a wasteful number, since it uses less digits than its factorization.

166660662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9373 (or 9366 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 166660662 is about 12909.7119255234. The cubic root of 166660662 is about 550.3145990789.

The spelling of 166660662 in words is "one hundred sixty-six million, six hundred sixty thousand, six hundred sixty-two".