611091117 has 48 divisors (see below), whose sum is σ = 1133653248. Its totient is φ = 308309760.

The previous prime is 611091109. The next prime is 611091157. The reversal of 611091117 is 711190116.

It is not a de Polignac number, because 611091117 - 2³ = 611091109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611091157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2617 + ... + 35057.

It is an arithmetic number, because the mean of its divisors is an integer number (23617776).

Almost surely, 2^611091117 is an apocalyptic number.

It is an amenable number.

611091117 is a deficient number, since it is larger than the sum of its proper divisors (522562131).

611091117 is a wasteful number, since it uses less digits than its factorization.

611091117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32490 (or 32487 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 27.

The square root of 611091117 is about 24720.2572195356. The cubic root of 611091117 is about 848.5979733681.

It can be divided in two parts, 61109 and 1117, that added together give a palindrome (62226).

The spelling of 611091117 in words is "six hundred eleven million, ninety-one thousand, one hundred seventeen".