64301664 has 96 divisors (see below), whose sum is σ = 194987520. Its totient is φ = 18173952.

The previous prime is 64301651. The next prime is 64301683. The reversal of 64301664 is 46610346.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68752 + ... + 69680.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 2^64301664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64301664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97493760).

64301664 is an abundant number, since it is smaller than the sum of its proper divisors (130685856).

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

64301664 is a wasteful number, since it uses less digits than its factorization.

64301664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 64301664 is about 8018.8318351241. The cubic root of 64301664 is about 400.6274818184.

The spelling of 64301664 in words is "sixty-four million, three hundred one thousand, six hundred sixty-four".