91831664202 has 16 divisors (see below), whose sum is σ = 183947205312. Its totient is φ = 30563241920.

The previous prime is 91831664201. The next prime is 91831664213. The reversal of 91831664202 is 20246613819.

It is not an unprimeable number, because it can be changed into a prime (91831664201) 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, 11823999 + ... + 11831762.

It is an arithmetic number, because the mean of its divisors is an integer number (11496700332).

Almost surely, 2^91831664202 is an apocalyptic number.

91831664202 is an abundant number, since it is smaller than the sum of its proper divisors (92115541110).

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

91831664202 is a wasteful number, since it uses less digits than its factorization.

91831664202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23656413.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 91831664202 in words is "ninety-one billion, eight hundred thirty-one million, six hundred sixty-four thousand, two hundred two".