40660066 has 8 divisors (see below), whose sum is σ = 61470720. Its totient is φ = 20169828.

The previous prime is 40660049. The next prime is 40660079. The reversal of 40660066 is 66006604.

40660066 is nontrivially palindromic in base 16.

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

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, 79786 + ... + 80293.

It is an arithmetic number, because the mean of its divisors is an integer number (7683840).

Almost surely, 2^40660066 is an apocalyptic number.

40660066 is a deficient number, since it is larger than the sum of its proper divisors (20810654).

40660066 is a wasteful number, since it uses less digits than its factorization.

40660066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160208.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 40660066 is about 6376.5246020070. The cubic root of 40660066 is about 343.8660973801.

The spelling of 40660066 in words is "forty million, six hundred sixty thousand, sixty-six".