64996518 has 8 divisors (see below), whose sum is σ = 129993048. Its totient is φ = 21665504.

The previous prime is 64996513. The next prime is 64996523. The reversal of 64996518 is 81569946.

It is an interprime number because it is at equal distance from previous prime (64996513) and next prime (64996523).

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

64996518 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64996513) 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, 5416371 + ... + 5416382.

It is an arithmetic number, because the mean of its divisors is an integer number (16249131).

Almost surely, 2^64996518 is an apocalyptic number.

64996518 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64996518 is a wasteful number, since it uses less digits than its factorization.

64996518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10832758.

The product of its digits is 466560, while the sum is 48.

The square root of 64996518 is about 8062.0418009336. The cubic root of 64996518 is about 402.0653961578.

The spelling of 64996518 in words is "sixty-four million, nine hundred ninety-six thousand, five hundred eighteen".