660613119879804 has 768 divisors, whose sum is σ = 2046075322368000. Its totient is φ = 161176444047360.

The previous prime is 660613119879781. The next prime is 660613119879827. The reversal of 660613119879804 is 408978911316066.

660613119879804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (660613119879781) and next prime (660613119879827).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 50898608187 + ... + 50898621165.

It is an arithmetic number, because the mean of its divisors is an integer number (2664160576000).

Almost surely, 2^{660613119879804} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660613119879804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023037661184000).

660613119879804 is an abundant number, since it is smaller than the sum of its proper divisors (1385462202488196).

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

660613119879804 is a wasteful number, since it uses less digits than its factorization.

660613119879804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13578 (or 13576 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 69.

The spelling of 660613119879804 in words is "six hundred sixty trillion, six hundred thirteen billion, one hundred nineteen million, eight hundred seventy-nine thousand, eight hundred four".