91117066616676 has 117 divisors (see below), whose sum is σ = 239218688519139. Its totient is φ = 30367716413256.

The previous prime is 91117066616617. The next prime is 91117066616689. The reversal of 91117066616676 is 67661666071119.

The square root of 91117066616676 is 9545526.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 13917373635 + ... + 13917380181.

Almost surely, 2^{91117066616676} is an apocalyptic number.

91117066616676 is the 9545526-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91117066616676

91117066616676 is an abundant number, since it is smaller than the sum of its proper divisors (148101621902463).

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

91117066616676 is an frugal number, since it uses more digits than its factorization.

91117066616676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13134 (or 6552 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 91117066616676 in words is "ninety-one trillion, one hundred seventeen billion, sixty-six million, six hundred sixteen thousand, six hundred seventy-six".