66356526660 has 96 divisors (see below), whose sum is σ = 186379159680. Its totient is φ = 17639857152.

The previous prime is 66356526659. The next prime is 66356526679. The reversal of 66356526660 is 6662565366.

66356526660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46305304 + ... + 46306736.

It is an arithmetic number, because the mean of its divisors is an integer number (1941449580).

Almost surely, 2^66356526660 is an apocalyptic number.

66356526660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66356526660 is an abundant number, since it is smaller than the sum of its proper divisors (120022633020).

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

66356526660 is a wasteful number, since it uses less digits than its factorization.

66356526660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 51.

The spelling of 66356526660 in words is "sixty-six billion, three hundred fifty-six million, five hundred twenty-six thousand, six hundred sixty".