64564258146 has 16 divisors (see below), whose sum is σ = 136724311584. Its totient is φ = 20255453504.

The previous prime is 64564258139. The next prime is 64564258151. The reversal of 64564258146 is 64185246546.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316491360 + ... + 316491563.

It is an arithmetic number, because the mean of its divisors is an integer number (8545269474).

Almost surely, 2^64564258146 is an apocalyptic number.

64564258146 is an abundant number, since it is smaller than the sum of its proper divisors (72160053438).

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

64564258146 is a wasteful number, since it uses less digits than its factorization.

64564258146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632982945.

The product of its digits is 5529600, while the sum is 51.

The spelling of 64564258146 in words is "sixty-four billion, five hundred sixty-four million, two hundred fifty-eight thousand, one hundred forty-six".