91233555201 has 8 divisors (see below), whose sum is σ = 135160822560. Its totient is φ = 60822370116.

The previous prime is 91233555173. The next prime is 91233555247. The reversal of 91233555201 is 10255533219.

91233555201 is a `hidden beast` number, since 9 + 123 + 3 + 5 + 5 + 520 + 1 = 666.

It is not a de Polignac number, because 91233555201 - 2⁹ = 91233554689 is a prime.

It is a super-3 number, since 3×91233555201³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (91233555251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689510255 + ... + 1689510308.

It is an arithmetic number, because the mean of its divisors is an integer number (16895102820).

Almost surely, 2^91233555201 is an apocalyptic number.

It is an amenable number.

91233555201 is a deficient number, since it is larger than the sum of its proper divisors (43927267359).

91233555201 is a wasteful number, since it uses less digits than its factorization.

91233555201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379020572 (or 3379020566 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The spelling of 91233555201 in words is "ninety-one billion, two hundred thirty-three million, five hundred fifty-five thousand, two hundred one".