64466330128 has 20 divisors (see below), whose sum is σ = 124914089808. Its totient is φ = 32230436000.

The previous prime is 64466330119. The next prime is 64466330153. The reversal of 64466330128 is 82103366446.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31575 + ... + 360457.

Almost surely, 2^64466330128 is an apocalyptic number.

It is an amenable number.

64466330128 is a deficient number, since it is larger than the sum of its proper divisors (60447759680).

64466330128 is a wasteful number, since it uses less digits than its factorization.

64466330128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341142 (or 341136 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 64466330128 in words is "sixty-four billion, four hundred sixty-six million, three hundred thirty thousand, one hundred twenty-eight".