662879642880 has 576 divisors, whose sum is σ = 2695517314560. Its totient is φ = 135035486208.

The previous prime is 662879642863. The next prime is 662879642891. The reversal of 662879642880 is 88246978266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10101054 + ... + 10166466.

It is an arithmetic number, because the mean of its divisors is an integer number (4679717560).

Almost surely, 2^662879642880 is an apocalyptic number.

662879642880 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 662879642880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347758657280).

662879642880 is an abundant number, since it is smaller than the sum of its proper divisors (2032637671680).

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

662879642880 is a wasteful number, since it uses less digits than its factorization.

662879642880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65486 (or 65472 counting only the distinct ones).

The product of its (nonzero) digits is 111476736, while the sum is 66.

The spelling of 662879642880 in words is "six hundred sixty-two billion, eight hundred seventy-nine million, six hundred forty-two thousand, eight hundred eighty".