5611091766 has 64 divisors (see below), whose sum is σ = 12995942400. Its totient is φ = 1581989760.

The previous prime is 5611091749. The next prime is 5611091807. The reversal of 5611091766 is 6671901165.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 31 ways as a sum of consecutive naturals, for example, 979651 + ... + 985361.

It is an arithmetic number, because the mean of its divisors is an integer number (203061600).

Almost surely, 2^5611091766 is an apocalyptic number.

5611091766 is an abundant number, since it is smaller than the sum of its proper divisors (7384850634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5611091766 is a wasteful number, since it uses less digits than its factorization.

5611091766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 5611091766 is about 74907.2210537809. The cubic root of 5611091766 is about 1776.9796616276.

The spelling of 5611091766 in words is "five billion, six hundred eleven million, ninety-one thousand, seven hundred sixty-six".