660279494334 has 16 divisors (see below), whose sum is σ = 1320747966720. Its totient is φ = 220061668440.

The previous prime is 660279494297. The next prime is 660279494431. The reversal of 660279494334 is 433494972066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7828644 + ... + 7912535.

It is an arithmetic number, because the mean of its divisors is an integer number (82546747920).

Almost surely, 2^660279494334 is an apocalyptic number.

660279494334 is an abundant number, since it is smaller than the sum of its proper divisors (660468472386).

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

660279494334 is a wasteful number, since it uses less digits than its factorization.

660279494334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15748175.

The product of its (nonzero) digits is 23514624, while the sum is 57.

The spelling of 660279494334 in words is "six hundred sixty billion, two hundred seventy-nine million, four hundred ninety-four thousand, three hundred thirty-four".