66079465 has 4 divisors (see below), whose sum is σ = 79295364. Its totient is φ = 52863568.

The previous prime is 66079441. The next prime is 66079477. The reversal of 66079465 is 56497066.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21603904 + 44475561 = 4648^2 + 6669^2 .

It is a cyclic number.

It is not a de Polignac number, because 66079465 - 2⁷ = 66079337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6607942 + ... + 6607951.

It is an arithmetic number, because the mean of its divisors is an integer number (19823841).

Almost surely, 2^66079465 is an apocalyptic number.

It is an amenable number.

66079465 is a deficient number, since it is larger than the sum of its proper divisors (13215899).

66079465 is a wasteful number, since it uses less digits than its factorization.

66079465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13215898.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 66079465 is about 8128.9276660578. The cubic root of 66079465 is about 404.2861274863.

The spelling of 66079465 in words is "sixty-six million, seventy-nine thousand, four hundred sixty-five".