667555713360 has 400 divisors, whose sum is σ = 2350728293760. Its totient is φ = 175550008320.

The previous prime is 667555713337. The next prime is 667555713379. The reversal of 667555713360 is 63317555766.

667555713360 is a `hidden beast` number, since 6 + 6 + 7 + 5 + 5 + 571 + 3 + 3 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 667555713297 and 667555713306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 506106781 + ... + 506108099.

Almost surely, 2^667555713360 is an apocalyptic number.

667555713360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667555713360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175364146880).

667555713360 is an abundant number, since it is smaller than the sum of its proper divisors (1683172580400).

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

667555713360 is a wasteful number, since it uses less digits than its factorization.

667555713360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 54.

The spelling of 667555713360 in words is "six hundred sixty-seven billion, five hundred fifty-five million, seven hundred thirteen thousand, three hundred sixty".