40100666 has 8 divisors (see below), whose sum is σ = 60584160. Its totient is φ = 19905948.

The previous prime is 40100663. The next prime is 40100693. The reversal of 40100666 is 66600104.

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

It is not an unprimeable number, because it can be changed into a prime (40100663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71846 + ... + 72401.

It is an arithmetic number, because the mean of its divisors is an integer number (7573020).

Almost surely, 2^40100666 is an apocalyptic number.

40100666 is a deficient number, since it is larger than the sum of its proper divisors (20483494).

40100666 is a wasteful number, since it uses less digits than its factorization.

40100666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144388.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 40100666 is about 6332.5086656080. The cubic root of 40100666 is about 342.2818430650.

The spelling of 40100666 in words is "forty million, one hundred thousand, six hundred sixty-six".