166690662 has 8 divisors (see below), whose sum is σ = 333381336. Its totient is φ = 55563552.

The previous prime is 166690631. The next prime is 166690663. The reversal of 166690662 is 266096661.

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

166690662 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166690663) 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, 13890883 + ... + 13890894.

It is an arithmetic number, because the mean of its divisors is an integer number (41672667).

Almost surely, 2^166690662 is an apocalyptic number.

166690662 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.

166690662 is a wasteful number, since it uses less digits than its factorization.

166690662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27781782.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 166690662 is about 12910.8737891748. The cubic root of 166690662 is about 550.3476171634.

The spelling of 166690662 in words is "one hundred sixty-six million, six hundred ninety thousand, six hundred sixty-two".