660206301040 has 120 divisors (see below), whose sum is σ = 1813241565648. Its totient is φ = 221607659520.

The previous prime is 660206301031. The next prime is 660206301059. The reversal of 660206301040 is 40103602066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2070909 + ... + 2368348.

Almost surely, 2^660206301040 is an apocalyptic number.

It is an amenable number.

660206301040 is an abundant number, since it is smaller than the sum of its proper divisors (1153035264608).

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

660206301040 is a wasteful number, since it uses less digits than its factorization.

660206301040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439307 (or 4439288 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 660206301040 in words is "six hundred sixty billion, two hundred six million, three hundred one thousand, forty".