166701662 has 4 divisors (see below), whose sum is σ = 250052496. Its totient is φ = 83350830.

The previous prime is 166701659. The next prime is 166701673. The reversal of 166701662 is 266107661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 266107661 = 5581 ⋅47681.

It is a super-2 number, since 2×166701662² = 55578888227124488, which contains 22 as substring.

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, 41675414 + ... + 41675417.

It is an arithmetic number, because the mean of its divisors is an integer number (62513124).

Almost surely, 2^166701662 is an apocalyptic number.

166701662 is a deficient number, since it is larger than the sum of its proper divisors (83350834).

166701662 is an equidigital number, since it uses as much as digits as its factorization.

166701662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83350833.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 166701662 is about 12911.2997796504. The cubic root of 166701662 is about 550.3597228018.

The spelling of 166701662 in words is "one hundred sixty-six million, seven hundred one thousand, six hundred sixty-two".