66075874 has 8 divisors (see below), whose sum is σ = 99827280. Its totient is φ = 32800116.

The previous prime is 66075859. The next prime is 66075913. The reversal of 66075874 is 47857066.

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

It is a super-2 number, since 2×66075874² = 8732042249727752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66075874.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118564 + ... + 119119.

It is an arithmetic number, because the mean of its divisors is an integer number (12478410).

Almost surely, 2^66075874 is an apocalyptic number.

66075874 is a deficient number, since it is larger than the sum of its proper divisors (33751406).

66075874 is a wasteful number, since it uses less digits than its factorization.

66075874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237824.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 66075874 is about 8128.7067852150. The cubic root of 66075874 is about 404.2788038910.

The spelling of 66075874 in words is "sixty-six million, seventy-five thousand, eight hundred seventy-four".