662031621236 has 48 divisors (see below), whose sum is σ = 1213115387904. Its totient is φ = 315528381696.

The previous prime is 662031621193. The next prime is 662031621253. The reversal of 662031621236 is 632126130266.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 662031621236.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44989016 + ... + 45003728.

It is an arithmetic number, because the mean of its divisors is an integer number (25273237248).

Almost surely, 2^662031621236 is an apocalyptic number.

It is an amenable number.

662031621236 is a deficient number, since it is larger than the sum of its proper divisors (551083766668).

662031621236 is a wasteful number, since it uses less digits than its factorization.

662031621236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16400 (or 16398 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 662031621236 in words is "six hundred sixty-two billion, thirty-one million, six hundred twenty-one thousand, two hundred thirty-six".