64412066 has 16 divisors (see below), whose sum is σ = 100848888. Its totient is φ = 30825600.

The previous prime is 64412041. The next prime is 64412083. The reversal of 64412066 is 66021446.

It can be written as a sum of positive squares in 4 ways, for example, as 44422225 + 19989841 = 6665^2 + 4471^2 .

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, 3065 + ... + 11756.

Almost surely, 2^64412066 is an apocalyptic number.

64412066 is a deficient number, since it is larger than the sum of its proper divisors (36436822).

64412066 is a wasteful number, since it uses less digits than its factorization.

64412066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14917.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 64412066 is about 8025.7128032344. The cubic root of 64412066 is about 400.8566349651.

The spelling of 64412066 in words is "sixty-four million, four hundred twelve thousand, sixty-six".