64660385160 has 192 divisors, whose sum is σ = 249062486400. Its totient is φ = 14779501056.

The previous prime is 64660385143. The next prime is 64660385189. The reversal of 64660385160 is 6158306646.

64660385160 is a `hidden beast` number, since 6 + 46 + 60 + 38 + 516 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 407125 + ... + 543204.

It is an arithmetic number, because the mean of its divisors is an integer number (1297200450).

Almost surely, 2^64660385160 is an apocalyptic number.

64660385160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64660385160 is an abundant number, since it is smaller than the sum of its proper divisors (184402101240).

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

64660385160 is a wasteful number, since it uses less digits than its factorization.

64660385160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950362 (or 950346 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 64660385160 in words is "sixty-four billion, six hundred sixty million, three hundred eighty-five thousand, one hundred sixty".