64520608012185 has 64 divisors (see below), whose sum is σ = 111864829160448. Its totient is φ = 31566634239744.

The previous prime is 64520608012141. The next prime is 64520608012199. The reversal of 64520608012185 is 58121080602546.

It is not a de Polignac number, because 64520608012185 - 2¹⁴ = 64520607995801 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 441961014 + ... + 442106976.

It is an arithmetic number, because the mean of its divisors is an integer number (1747887955632).

Almost surely, 2^{64520608012185} is an apocalyptic number.

64520608012185 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64520608012185 is a deficient number, since it is larger than the sum of its proper divisors (47344221148263).

64520608012185 is a wasteful number, since it uses less digits than its factorization.

64520608012185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160054.

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 64520608012185 in words is "sixty-four trillion, five hundred twenty billion, six hundred eight million, twelve thousand, one hundred eighty-five".