667810101696 has 56 divisors (see below), whose sum is σ = 1804508171520. Its totient is φ = 217867122432.

The previous prime is 667810101677. The next prime is 667810101781. The reversal of 667810101696 is 696101018766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36992866 + ... + 37010913.

Almost surely, 2^667810101696 is an apocalyptic number.

It is an amenable number.

667810101696 is an abundant number, since it is smaller than the sum of its proper divisors (1136698069824).

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

667810101696 is a wasteful number, since it uses less digits than its factorization.

667810101696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74003841 (or 74003831 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 667810101696 in words is "six hundred sixty-seven billion, eight hundred ten million, one hundred one thousand, six hundred ninety-six".