64668076 has 12 divisors (see below), whose sum is σ = 123457320. Its totient is φ = 29394560.

The previous prime is 64668073. The next prime is 64668101. The reversal of 64668076 is 67086646.

It is not an unprimeable number, because it can be changed into a prime (64668073) 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, 734821 + ... + 734908.

It is an arithmetic number, because the mean of its divisors is an integer number (10288110).

Almost surely, 2^64668076 is an apocalyptic number.

It is an amenable number.

64668076 is a deficient number, since it is larger than the sum of its proper divisors (58789244).

64668076 is a wasteful number, since it uses less digits than its factorization.

64668076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469744 (or 1469742 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 64668076 is about 8041.6463488517. The cubic root of 64668076 is about 401.3870099495.

The spelling of 64668076 in words is "sixty-four million, six hundred sixty-eight thousand, seventy-six".