64665414 has 24 divisors (see below), whose sum is σ = 152845992. Its totient is φ = 19595520.

The previous prime is 64665413. The next prime is 64665437. The reversal of 64665414 is 41456646.

64665414 is a `hidden beast` number, since 646 + 6 + 5 + 4 + 1 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64665413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163099 + ... + 163494.

It is an arithmetic number, because the mean of its divisors is an integer number (6368583).

Almost surely, 2^64665414 is an apocalyptic number.

64665414 is an abundant number, since it is smaller than the sum of its proper divisors (88180578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64665414 is a wasteful number, since it uses less digits than its factorization.

64665414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326612 (or 326609 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 64665414 is about 8041.4808337768. The cubic root of 64665414 is about 401.3815023021.

The spelling of 64665414 in words is "sixty-four million, six hundred sixty-five thousand, four hundred fourteen".