660338840436 has 96 divisors (see below), whose sum is σ = 1684947264000. Its totient is φ = 199616918400.

The previous prime is 660338840429. The next prime is 660338840449. The reversal of 660338840436 is 634048833066.

It is a super-2 number, since 2×660338840436² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207196035 + ... + 207199221.

It is an arithmetic number, because the mean of its divisors is an integer number (17551534000).

Almost surely, 2^660338840436 is an apocalyptic number.

660338840436 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

660338840436 is an abundant number, since it is smaller than the sum of its proper divisors (1024608423564).

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

660338840436 is a wasteful number, since it uses less digits than its factorization.

660338840436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525 (or 6523 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 51.

The spelling of 660338840436 in words is "six hundred sixty billion, three hundred thirty-eight million, eight hundred forty thousand, four hundred thirty-six".