90916675091 has 16 divisors (see below), whose sum is σ = 103506923520. Its totient is φ = 79048168320.

The previous prime is 90916675063. The next prime is 90916675111. The reversal of 90916675091 is 19057661909.

It is a happy number.

It is not a de Polignac number, because 90916675091 - 2²² = 90912480787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90916675891) 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, 2654411 + ... + 2688443.

It is an arithmetic number, because the mean of its divisors is an integer number (6469182720).

Almost surely, 2^90916675091 is an apocalyptic number.

90916675091 is a deficient number, since it is larger than the sum of its proper divisors (12590248429).

90916675091 is a wasteful number, since it uses less digits than its factorization.

90916675091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44626.

The product of its (nonzero) digits is 918540, while the sum is 53.

The spelling of 90916675091 in words is "ninety billion, nine hundred sixteen million, six hundred seventy-five thousand, ninety-one".