91646666332 has 24 divisors (see below), whose sum is σ = 173091805376. Its totient is φ = 42207092928.

The previous prime is 91646666329. The next prime is 91646666339. The reversal of 91646666332 is 23366664619.

It is a super-2 number, since 2×91646666332² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 91646666332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91646666339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1879203 + ... + 1927354.

Almost surely, 2^91646666332 is an apocalyptic number.

It is an amenable number.

91646666332 is a deficient number, since it is larger than the sum of its proper divisors (81445139044).

91646666332 is a wasteful number, since it uses less digits than its factorization.

91646666332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807037 (or 3807035 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 52.

The spelling of 91646666332 in words is "ninety-one billion, six hundred forty-six million, six hundred sixty-six thousand, three hundred thirty-two".