91166866102 has 64 divisors (see below), whose sum is σ = 154118764800. Its totient is φ = 40155615360.

The previous prime is 91166866027. The next prime is 91166866117. The reversal of 91166866102 is 20166866119.

It is a super-2 number, since 2×91166866102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46066149 + ... + 46068127.

It is an arithmetic number, because the mean of its divisors is an integer number (2408105700).

Almost surely, 2^91166866102 is an apocalyptic number.

91166866102 is a deficient number, since it is larger than the sum of its proper divisors (62951898698).

91166866102 is a wasteful number, since it uses less digits than its factorization.

91166866102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 91166866102 in words is "ninety-one billion, one hundred sixty-six million, eight hundred sixty-six thousand, one hundred two".