662317813740 has 144 divisors (see below), whose sum is σ = 2047391087616. Its totient is φ = 159854175360.

The previous prime is 662317813739. The next prime is 662317813769. The reversal of 662317813740 is 47318713266.

It is a self number, because there is not a number n which added to its sum of digits gives 662317813740.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1447077 + ... + 1848963.

It is an arithmetic number, because the mean of its divisors is an integer number (14217993664).

Almost surely, 2^662317813740 is an apocalyptic number.

662317813740 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 662317813740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023695543808).

662317813740 is an abundant number, since it is smaller than the sum of its proper divisors (1385073273876).

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

662317813740 is a wasteful number, since it uses less digits than its factorization.

662317813740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402148 (or 402135 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 662317813740 in words is "six hundred sixty-two billion, three hundred seventeen million, eight hundred thirteen thousand, seven hundred forty".