64595272336 has 135 divisors (see below), whose sum is σ = 151263139131. Its totient is φ = 26643681792.

The previous prime is 64595272289. The next prime is 64595272349. The reversal of 64595272336 is 63327259546.

The square root of 64595272336 is 254156.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 25606400400 + 38988871936 = 160020^2 + 197456^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 206374516 + ... + 206374828.

Almost surely, 2^64595272336 is an apocalyptic number.

64595272336 is the 254156-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64595272336

64595272336 is an abundant number, since it is smaller than the sum of its proper divisors (86667866795).

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

64595272336 is an equidigital number, since it uses as much as digits as its factorization.

64595272336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 351 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 52.

The spelling of 64595272336 in words is "sixty-four billion, five hundred ninety-five million, two hundred seventy-two thousand, three hundred thirty-six".