662323185420 has 96 divisors (see below), whose sum is σ = 2002723107840. Its totient is φ = 162579198720.

The previous prime is 662323185413. The next prime is 662323185431. The reversal of 662323185420 is 24581323266.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902616 + ... + 1462655.

It is an arithmetic number, because the mean of its divisors is an integer number (20861699040).

Almost surely, 2^662323185420 is an apocalyptic number.

662323185420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662323185420 is an abundant number, since it is smaller than the sum of its proper divisors (1340399922420).

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

662323185420 is a wasteful number, since it uses less digits than its factorization.

662323185420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365655 (or 2365653 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 662323185420 in words is "six hundred sixty-two billion, three hundred twenty-three million, one hundred eighty-five thousand, four hundred twenty".