91162913100 has 576 divisors, whose sum is σ = 326481103872. Its totient is φ = 19169280000.

The previous prime is 91162913099. The next prime is 91162913147. The reversal of 91162913100 is 131926119.

It is a super-2 number, since 2×91162913100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 472346604 + ... + 472346796.

It is an arithmetic number, because the mean of its divisors is an integer number (566807472).

Almost surely, 2^91162913100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91162913100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163240551936).

91162913100 is an abundant number, since it is smaller than the sum of its proper divisors (235318190772).

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

91162913100 is a wasteful number, since it uses less digits than its factorization.

91162913100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 33.

The spelling of 91162913100 in words is "ninety-one billion, one hundred sixty-two million, nine hundred thirteen thousand, one hundred".