66727312260 has 48 divisors (see below), whose sum is σ = 213527400576. Its totient is φ = 15251956992.

The previous prime is 66727312207. The next prime is 66727312277. The reversal of 66727312260 is 6221372766.

66727312260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79436857 + ... + 79437696.

It is an arithmetic number, because the mean of its divisors is an integer number (4448487512).

Almost surely, 2^66727312260 is an apocalyptic number.

66727312260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66727312260 is an abundant number, since it is smaller than the sum of its proper divisors (146800088316).

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

66727312260 is a wasteful number, since it uses less digits than its factorization.

66727312260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158874572 (or 158874570 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 66727312260 in words is "sixty-six billion, seven hundred twenty-seven million, three hundred twelve thousand, two hundred sixty".