66464313 has 4 divisors (see below), whose sum is σ = 88619088. Its totient is φ = 44309540.

The previous prime is 66464309. The next prime is 66464323. The reversal of 66464313 is 31346466.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66464313 - 2² = 66464309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66464323) 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, 11077383 + ... + 11077388.

It is an arithmetic number, because the mean of its divisors is an integer number (22154772).

Almost surely, 2^66464313 is an apocalyptic number.

It is an amenable number.

66464313 is a deficient number, since it is larger than the sum of its proper divisors (22154775).

66464313 is a wasteful number, since it uses less digits than its factorization.

66464313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22154774.

The product of its digits is 31104, while the sum is 33.

The square root of 66464313 is about 8152.5648111499. The cubic root of 66464313 is about 405.0694652985.

The spelling of 66464313 in words is "sixty-six million, four hundred sixty-four thousand, three hundred thirteen".