5511156566 has 8 divisors (see below), whose sum is σ = 8267049864. Its totient is φ = 2755473280.

The previous prime is 5511156557. The next prime is 5511156571. The reversal of 5511156566 is 6656511155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76406 + ... + 129846.

It is an arithmetic number, because the mean of its divisors is an integer number (1033381233).

Almost surely, 2^5511156566 is an apocalyptic number.

5511156566 is a deficient number, since it is larger than the sum of its proper divisors (2755893298).

5511156566 is a wasteful number, since it uses less digits than its factorization.

5511156566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105006.

The product of its digits is 135000, while the sum is 41.

The square root of 5511156566 is about 74237.1643181500. The cubic root of 5511156566 is about 1766.3668938065.

The spelling of 5511156566 in words is "five billion, five hundred eleven million, one hundred fifty-six thousand, five hundred sixty-six".