660066564106830 has 32 divisors (see below), whose sum is σ = 1584171987302304. Its totient is φ = 176016391156736.

The previous prime is 660066564106759. The next prime is 660066564106847. The reversal of 660066564106830 is 38601465660066.

It is a happy number.

It is a congruent number.

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, 81001899 + ... + 88777478.

It is an arithmetic number, because the mean of its divisors is an integer number (49505374603197).

Almost surely, 2^{660066564106830} is an apocalyptic number.

660066564106830 is an abundant number, since it is smaller than the sum of its proper divisors (924105423195474).

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

660066564106830 is a wasteful number, since it uses less digits than its factorization.

660066564106830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169908980.

The product of its (nonzero) digits is 22394880, while the sum is 57.

The spelling of 660066564106830 in words is "six hundred sixty trillion, sixty-six billion, five hundred sixty-four million, one hundred six thousand, eight hundred thirty".