660523278360 has 128 divisors (see below), whose sum is σ = 2161922400000. Its totient is φ = 160111311360.

The previous prime is 660523278319. The next prime is 660523278367. The reversal of 660523278360 is 63872325066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660523278367) 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, 19554766 + ... + 19588514.

It is an arithmetic number, because the mean of its divisors is an integer number (16890018750).

Almost surely, 2^660523278360 is an apocalyptic number.

660523278360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

660523278360 is an abundant number, since it is smaller than the sum of its proper divisors (1501399121640).

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

660523278360 is a wasteful number, since it uses less digits than its factorization.

660523278360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48601 (or 48597 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 660523278360 in words is "six hundred sixty billion, five hundred twenty-three million, two hundred seventy-eight thousand, three hundred sixty".