66164206 has 8 divisors (see below), whose sum is σ = 100028160. Its totient is φ = 32821488.

The previous prime is 66164183. The next prime is 66164239. The reversal of 66164206 is 60246166.

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

It is a super-2 number, since 2×66164206² = 8755404311220872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129991 + ... + 130498.

It is an arithmetic number, because the mean of its divisors is an integer number (12503520).

Almost surely, 2^66164206 is an apocalyptic number.

66164206 is a deficient number, since it is larger than the sum of its proper divisors (33863954).

66164206 is a wasteful number, since it uses less digits than its factorization.

66164206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260618.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 66164206 is about 8134.1383071595. The cubic root of 66164206 is about 404.4588739222.

The spelling of 66164206 in words is "sixty-six million, one hundred sixty-four thousand, two hundred six".