660727079200704 has 224 divisors, whose sum is σ = 1948481489790720. Its totient is φ = 196371790774272.

The previous prime is 660727079200649. The next prime is 660727079200709. The reversal of 660727079200704 is 407002970727066.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660727079200709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2711031619 + ... + 2711275325.

Almost surely, 2^{660727079200704} is an apocalyptic number.

660727079200704 is a gapful number since it is divisible by the number (64) 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 660727079200704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974240744895360).

660727079200704 is an abundant number, since it is smaller than the sum of its proper divisors (1287754410590016).

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

660727079200704 is a wasteful number, since it uses less digits than its factorization.

660727079200704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287475 (or 287465 counting only the distinct ones).

The product of its (nonzero) digits is 12446784, while the sum is 57.

The spelling of 660727079200704 in words is "six hundred sixty trillion, seven hundred twenty-seven billion, seventy-nine million, two hundred thousand, seven hundred four".