662665044340 has 48 divisors (see below), whose sum is σ = 1498972180608. Its totient is φ = 244622496384.

The previous prime is 662665044317. The next prime is 662665044403. The reversal of 662665044340 is 43440566266.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 913519 + ... + 1469641.

It is an arithmetic number, because the mean of its divisors is an integer number (31228587096).

Almost surely, 2^662665044340 is an apocalyptic number.

It is an amenable number.

662665044340 is an abundant number, since it is smaller than the sum of its proper divisors (836307136268).

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

662665044340 is a wasteful number, since it uses less digits than its factorization.

662665044340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560728 (or 560726 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 662665044340 in words is "six hundred sixty-two billion, six hundred sixty-five million, forty-four thousand, three hundred forty".