91410045550 has 24 divisors (see below), whose sum is σ = 172071158616. Its totient is φ = 36123486240.

The previous prime is 91410045541. The next prime is 91410045563. The reversal of 91410045550 is 5554001419.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11009109 + ... + 11017408.

It is an arithmetic number, because the mean of its divisors is an integer number (7169631609).

Almost surely, 2^91410045550 is an apocalyptic number.

91410045550 is a deficient number, since it is larger than the sum of its proper divisors (80661113066).

91410045550 is a wasteful number, since it uses less digits than its factorization.

91410045550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22026612 (or 22026607 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 91410045550 its reverse (5554001419), we get a palindrome (96964046969).

The spelling of 91410045550 in words is "ninety-one billion, four hundred ten million, forty-five thousand, five hundred fifty".