64552066 has 8 divisors (see below), whose sum is σ = 96862284. Its totient is φ = 32264640.

The previous prime is 64552049. The next prime is 64552069. The reversal of 64552066 is 66025546.

It can be written as a sum of positive squares in 2 ways, for example, as 61387225 + 3164841 = 7835^2 + 1779^2 .

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 (64552069) 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, 7486 + ... + 13606.

Almost surely, 2^64552066 is an apocalyptic number.

64552066 is a deficient number, since it is larger than the sum of its proper divisors (32310218).

64552066 is a wasteful number, since it uses less digits than its factorization.

64552066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11396.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 64552066 is about 8034.4300357897. The cubic root of 64552066 is about 401.1468462169.

It can be divided in two parts, 6455 and 2066, that multiplied together give a triangular number (13336030 = T₅₁₆₄).

The spelling of 64552066 in words is "sixty-four million, five hundred fifty-two thousand, sixty-six".