91751666676 has 48 divisors (see below), whose sum is σ = 216036832704. Its totient is φ = 30305511936.

The previous prime is 91751666639. The next prime is 91751666683. The reversal of 91751666676 is 67666615719.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8188710 + ... + 8199906.

It is an arithmetic number, because the mean of its divisors is an integer number (4500767348).

Almost surely, 2^91751666676 is an apocalyptic number.

It is an amenable number.

91751666676 is an abundant number, since it is smaller than the sum of its proper divisors (124285166028).

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

91751666676 is a wasteful number, since it uses less digits than its factorization.

91751666676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17360 (or 17358 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 60.

The spelling of 91751666676 in words is "ninety-one billion, seven hundred fifty-one million, six hundred sixty-six thousand, six hundred seventy-six".