64310066 has 4 divisors (see below), whose sum is σ = 96465102. Its totient is φ = 32155032.

The previous prime is 64310063. The next prime is 64310083. The reversal of 64310066 is 66001346.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49294441 + 15015625 = 7021^2 + 3875^2 .

It is not an unprimeable number, because it can be changed into a prime (64310063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16077515 + ... + 16077518.

Almost surely, 2^64310066 is an apocalyptic number.

64310066 is a deficient number, since it is larger than the sum of its proper divisors (32155036).

64310066 is a wasteful number, since it uses less digits than its factorization.

64310066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32155035.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 64310066 is about 8019.3557097812. The cubic root of 64310066 is about 400.6449304363.

The spelling of 64310066 in words is "sixty-four million, three hundred ten thousand, sixty-six".