166654065 has 8 divisors (see below), whose sum is σ = 266646528. Its totient is φ = 88882160.

The previous prime is 166654027. The next prime is 166654079. The reversal of 166654065 is 560456661.

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

It is not a de Polignac number, because 166654065 - 2⁶ = 166654001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555121 + ... + 5555150.

It is an arithmetic number, because the mean of its divisors is an integer number (33330816).

Almost surely, 2^166654065 is an apocalyptic number.

166654065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166654065 is a deficient number, since it is larger than the sum of its proper divisors (99992463).

166654065 is a wasteful number, since it uses less digits than its factorization.

166654065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110279.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 166654065 is about 12909.4564176808. The cubic root of 166654065 is about 550.3073378707.

The spelling of 166654065 in words is "one hundred sixty-six million, six hundred fifty-four thousand, sixty-five".