66871673962 has 16 divisors (see below), whose sum is σ = 102200817600. Its totient is φ = 32808619008.

The previous prime is 66871673933. The next prime is 66871673983. The reversal of 66871673962 is 26937617866.

It is a self number, because there is not a number n which added to its sum of digits gives 66871673962.

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, 936462 + ... + 1005337.

It is an arithmetic number, because the mean of its divisors is an integer number (6387551100).

Almost surely, 2^66871673962 is an apocalyptic number.

66871673962 is a deficient number, since it is larger than the sum of its proper divisors (35329143638).

66871673962 is a wasteful number, since it uses less digits than its factorization.

66871673962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942125.

The product of its digits is 27433728, while the sum is 61.

The spelling of 66871673962 in words is "sixty-six billion, eight hundred seventy-one million, six hundred seventy-three thousand, nine hundred sixty-two".