64130664 has 128 divisors (see below), whose sum is σ = 186157440. Its totient is φ = 18235392.

The previous prime is 64130639. The next prime is 64130711. The reversal of 64130664 is 46603146.

64130664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64130664² = 8225484130161792, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 31 ways as a sum of consecutive naturals, for example, 567472 + ... + 567584.

It is an arithmetic number, because the mean of its divisors is an integer number (1454355).

Almost surely, 2^64130664 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 64130664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93078720).

64130664 is an abundant number, since it is smaller than the sum of its proper divisors (122026776).

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

64130664 is a wasteful number, since it uses less digits than its factorization.

64130664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 255 counting only the distinct ones).

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

The square root of 64130664 is about 8008.1623360169. The cubic root of 64130664 is about 400.2720316217.

The spelling of 64130664 in words is "sixty-four million, one hundred thirty thousand, six hundred sixty-four".