90116611 has 4 divisors (see below), whose sum is σ = 97048672. Its totient is φ = 83184552.

The previous prime is 90116591. The next prime is 90116627. The reversal of 90116611 is 11661109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11661109 = 167 ⋅69827.

It is a cyclic number.

It is not a de Polignac number, because 90116611 - 2¹⁵ = 90083843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90116641) 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, 3466011 + ... + 3466036.

It is an arithmetic number, because the mean of its divisors is an integer number (24262168).

Almost surely, 2^90116611 is an apocalyptic number.

90116611 is a deficient number, since it is larger than the sum of its proper divisors (6932061).

90116611 is a wasteful number, since it uses less digits than its factorization.

90116611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6932060.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 90116611 is about 9492.9769303417. The cubic root of 90116611 is about 448.3339396751. Note that the first 3 decimals are identical.

The spelling of 90116611 in words is "ninety million, one hundred sixteen thousand, six hundred eleven".