662345804872 has 32 divisors (see below), whose sum is σ = 1243098489600. Its totient is φ = 330853045824.

The previous prime is 662345804867. The next prime is 662345804903. The reversal of 662345804872 is 278408543266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38891223 + ... + 38908249.

It is an arithmetic number, because the mean of its divisors is an integer number (38846827800).

Almost surely, 2^662345804872 is an apocalyptic number.

It is an amenable number.

662345804872 is a deficient number, since it is larger than the sum of its proper divisors (580752684728).

662345804872 is a wasteful number, since it uses less digits than its factorization.

662345804872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21445 (or 21441 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 662345804872 in words is "six hundred sixty-two billion, three hundred forty-five million, eight hundred four thousand, eight hundred seventy-two".