64665514 has 8 divisors (see below), whose sum is σ = 99062208. Its totient is φ = 31644780.

The previous prime is 64665499. The next prime is 64665521. The reversal of 64665514 is 41556646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343872 + ... + 344059.

It is an arithmetic number, because the mean of its divisors is an integer number (12382776).

Almost surely, 2^64665514 is an apocalyptic number.

64665514 is a deficient number, since it is larger than the sum of its proper divisors (34396694).

64665514 is a wasteful number, since it uses less digits than its factorization.

64665514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687980.

The product of its digits is 86400, while the sum is 37.

The square root of 64665514 is about 8041.4870515347. The cubic root of 64665514 is about 401.3817092037.

The spelling of 64665514 in words is "sixty-four million, six hundred sixty-five thousand, five hundred fourteen".