66298010256 has 135 divisors (see below), whose sum is σ = 190339073379. Its totient is φ = 21542141376.

The previous prime is 66298010237. The next prime is 66298010257. The reversal of 66298010256 is 65201089266.

The square root of 66298010256 is 257484.

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

66298010256 is a `hidden beast` number, since 6 + 629 + 8 + 0 + 10 + 2 + 5 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (66298010257) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 132861495 + ... + 132861993.

Almost surely, 2^66298010256 is an apocalyptic number.

66298010256 is the 257484-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66298010256

66298010256 is an abundant number, since it is smaller than the sum of its proper divisors (124041063123).

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

66298010256 is an equidigital number, since it uses as much as digits as its factorization.

66298010256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 66298010256 in words is "sixty-six billion, two hundred ninety-eight million, ten thousand, two hundred fifty-six".