91617150422 has 16 divisors (see below), whose sum is σ = 159719973120. Its totient is φ = 38598992808.

The previous prime is 91617150371. The next prime is 91617150451. The reversal of 91617150422 is 22405171619.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55457498 + ... + 55459149.

It is an arithmetic number, because the mean of its divisors is an integer number (9982498320).

Almost surely, 2^91617150422 is an apocalyptic number.

91617150422 is a deficient number, since it is larger than the sum of its proper divisors (68102822698).

91617150422 is a wasteful number, since it uses less digits than its factorization.

91617150422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110916715.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 91617150422 in words is "ninety-one billion, six hundred seventeen million, one hundred fifty thousand, four hundred twenty-two".