70873680666 has 16 divisors (see below), whose sum is σ = 141996484800. Its totient is φ = 23583039648.

The previous prime is 70873680659. The next prime is 70873680673. The reversal of 70873680666 is 66608637807.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70873680659) and next prime (70873680673).

It is a super-2 number, since 2×70873680666² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10376446 + ... + 10383273.

It is an arithmetic number, because the mean of its divisors is an integer number (8874780300).

Almost surely, 2^70873680666 is an apocalyptic number.

70873680666 is an abundant number, since it is smaller than the sum of its proper divisors (71122804134).

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

70873680666 is a wasteful number, since it uses less digits than its factorization.

70873680666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20760293.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 70873680666 in words is "seventy billion, eight hundred seventy-three million, six hundred eighty thousand, six hundred sixty-six".