91055146422 has 32 divisors (see below), whose sum is σ = 183253012992. Its totient is φ = 30161849184.

The previous prime is 91055146417. The next prime is 91055146423. The reversal of 91055146422 is 22464155019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91055146423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550108 + ... + 696224.

It is an arithmetic number, because the mean of its divisors is an integer number (5726656656).

Almost surely, 2^91055146422 is an apocalyptic number.

91055146422 is an abundant number, since it is smaller than the sum of its proper divisors (92197866570).

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

91055146422 is a wasteful number, since it uses less digits than its factorization.

91055146422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146772.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 91055146422 in words is "ninety-one billion, fifty-five million, one hundred forty-six thousand, four hundred twenty-two".