64655464 has 16 divisors (see below), whose sum is σ = 121806720. Its totient is φ = 32173680.

The previous prime is 64655419. The next prime is 64655467. The reversal of 64655464 is 46455646.

It is a super-3 number, since 3×64655464³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64655467) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17464 + ... + 20839.

It is an arithmetic number, because the mean of its divisors is an integer number (7612920).

Almost surely, 2^64655464 is an apocalyptic number.

It is an amenable number.

64655464 is a deficient number, since it is larger than the sum of its proper divisors (57151256).

64655464 is a wasteful number, since it uses less digits than its factorization.

64655464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38520 (or 38516 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The square root of 64655464 is about 8040.8621428302. The cubic root of 64655464 is about 401.3609145280.

The spelling of 64655464 in words is "sixty-four million, six hundred fifty-five thousand, four hundred sixty-four".