64151668 has 12 divisors (see below), whose sum is σ = 128303392. Its totient is φ = 27493560.

The previous prime is 64151653. The next prime is 64151699. The reversal of 64151668 is 86615146.

64151668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

64151668 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145538 + ... + 1145593.

Almost surely, 2^64151668 is an apocalyptic number.

It is an amenable number.

64151668 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.

64151668 is a wasteful number, since it uses less digits than its factorization.

64151668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291142 (or 2291140 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 64151668 is about 8009.4736406333. The cubic root of 64151668 is about 400.3157257276.

The spelling of 64151668 in words is "sixty-four million, one hundred fifty-one thousand, six hundred sixty-eight".