660085104040 has 64 divisors (see below), whose sum is σ = 1500908486400. Its totient is φ = 261253993728.

The previous prime is 660085104017. The next prime is 660085104071. The reversal of 660085104040 is 40401580066.

It is a junction number, because it is equal to n+sod(n) for n = 660085103987 and 660085104005.

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, 1281027 + ... + 1720813.

It is an arithmetic number, because the mean of its divisors is an integer number (23451695100).

Almost surely, 2^660085104040 is an apocalyptic number.

It is an amenable number.

660085104040 is an abundant number, since it is smaller than the sum of its proper divisors (840823382360).

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

660085104040 is a wasteful number, since it uses less digits than its factorization.

660085104040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440194 (or 440190 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 660085104040 in words is "six hundred sixty billion, eighty-five million, one hundred four thousand, forty".