64185162249 has 32 divisors (see below), whose sum is σ = 92840832000. Its totient is φ = 39208538880.

The previous prime is 64185162187. The next prime is 64185162269. The reversal of 64185162249 is 94226158146.

It is not a de Polignac number, because 64185162249 - 2²⁰ = 64184113673 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64185162198 and 64185162207.

It is not an unprimeable number, because it can be changed into a prime (64185162269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13833672 + ... + 13838310.

It is an arithmetic number, because the mean of its divisors is an integer number (2901276000).

Almost surely, 2^64185162249 is an apocalyptic number.

It is an amenable number.

64185162249 is a deficient number, since it is larger than the sum of its proper divisors (28655669751).

64185162249 is a wasteful number, since it uses less digits than its factorization.

64185162249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7185.

The product of its digits is 829440, while the sum is 48.

The spelling of 64185162249 in words is "sixty-four billion, one hundred eighty-five million, one hundred sixty-two thousand, two hundred forty-nine".