660867686382 has 16 divisors (see below), whose sum is σ = 1322503397712. Its totient is φ = 220161224640.

The previous prime is 660867686363. The next prime is 660867686383. The reversal of 660867686382 is 283686768066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660867686383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31989853 + ... + 32010504.

It is an arithmetic number, because the mean of its divisors is an integer number (82656462357).

Almost surely, 2^660867686382 is an apocalyptic number.

660867686382 is an abundant number, since it is smaller than the sum of its proper divisors (661635711330).

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

660867686382 is a wasteful number, since it uses less digits than its factorization.

660867686382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64002083.

The product of its (nonzero) digits is 167215104, while the sum is 66.

The spelling of 660867686382 in words is "six hundred sixty billion, eight hundred sixty-seven million, six hundred eighty-six thousand, three hundred eighty-two".