91167061040044 has 12 divisors (see below), whose sum is σ = 174046207440168. Its totient is φ = 41439573200000.

The previous prime is 91167061040039. The next prime is 91167061040047. The reversal of 91167061040044 is 44004016076119.

It is a super-2 number, since 2×91167061040044² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91167061040047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035989329957 + ... + 1035989330044.

It is an arithmetic number, because the mean of its divisors is an integer number (14503850620014).

Almost surely, 2^{91167061040044} is an apocalyptic number.

It is an amenable number.

91167061040044 is a deficient number, since it is larger than the sum of its proper divisors (82879146400124).

91167061040044 is a wasteful number, since it uses less digits than its factorization.

91167061040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071978660016 (or 2071978660014 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 91167061040044 in words is "ninety-one trillion, one hundred sixty-seven billion, sixty-one million, forty thousand, forty-four".