91056808316 has 6 divisors (see below), whose sum is σ = 159349414560. Its totient is φ = 45528404156.

The previous prime is 91056808313. The next prime is 91056808327. The reversal of 91056808316 is 61380865019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91056808313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11382101036 + ... + 11382101043.

It is an arithmetic number, because the mean of its divisors is an integer number (26558235760).

Almost surely, 2^91056808316 is an apocalyptic number.

It is an amenable number.

91056808316 is a deficient number, since it is larger than the sum of its proper divisors (68292606244).

91056808316 is a wasteful number, since it uses less digits than its factorization.

91056808316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22764202083 (or 22764202081 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 91056808316 in words is "ninety-one billion, fifty-six million, eight hundred eight thousand, three hundred sixteen".