66310250260 has 12 divisors (see below), whose sum is σ = 139251525588. Its totient is φ = 26524100096.

The previous prime is 66310250243. The next prime is 66310250267. The reversal of 66310250260 is 6205201366.

66310250260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41486357124 + 24823893136 = 203682^2 + 157556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66310250267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657756237 + ... + 1657756276.

It is an arithmetic number, because the mean of its divisors is an integer number (11604293799).

Almost surely, 2^66310250260 is an apocalyptic number.

It is an amenable number.

66310250260 is an abundant number, since it is smaller than the sum of its proper divisors (72941275328).

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

66310250260 is a wasteful number, since it uses less digits than its factorization.

66310250260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315512522 (or 3315512520 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 66310250260 in words is "sixty-six billion, three hundred ten million, two hundred fifty thousand, two hundred sixty".