667803180568 has 16 divisors (see below), whose sum is σ = 1252160775000. Its totient is φ = 333893640576.

The previous prime is 667803180559. The next prime is 667803180619. The reversal of 667803180568 is 865081308766.

It is a super-2 number, since 2×667803180568² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628818 + ... + 1315681.

Almost surely, 2^667803180568 is an apocalyptic number.

It is an amenable number.

667803180568 is a deficient number, since it is larger than the sum of its proper divisors (584357594432).

667803180568 is a wasteful number, since it uses less digits than its factorization.

667803180568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987434 (or 1987430 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 667803180568 in words is "six hundred sixty-seven billion, eight hundred three million, one hundred eighty thousand, five hundred sixty-eight".