5511613666 has 16 divisors (see below), whose sum is σ = 9110433024. Its totient is φ = 2484662544.

The previous prime is 5511613609. The next prime is 5511613669. The reversal of 5511613666 is 6663161155.

It is not an unprimeable number, because it can be changed into a prime (5511613669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2463826 + ... + 2466061.

It is an arithmetic number, because the mean of its divisors is an integer number (569402064).

Almost surely, 2^5511613666 is an apocalyptic number.

5511613666 is a deficient number, since it is larger than the sum of its proper divisors (3598819358).

5511613666 is a wasteful number, since it uses less digits than its factorization.

5511613666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929945.

The product of its digits is 97200, while the sum is 40.

The square root of 5511613666 is about 74240.2429010035. The cubic root of 5511613666 is about 1766.4157271126.

The spelling of 5511613666 in words is "five billion, five hundred eleven million, six hundred thirteen thousand, six hundred sixty-six".