6611550166 has 16 divisors (see below), whose sum is σ = 10683329328. Its totient is φ = 3050589600.

The previous prime is 6611550157. The next prime is 6611550191. The reversal of 6611550166 is 6610551166.

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 7 ways as a sum of consecutive naturals, for example, 57601 + ... + 128611.

It is an arithmetic number, because the mean of its divisors is an integer number (667708083).

Almost surely, 2^6611550166 is an apocalyptic number.

6611550166 is a deficient number, since it is larger than the sum of its proper divisors (4071779162).

6611550166 is a wasteful number, since it uses less digits than its factorization.

6611550166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74607.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 6611550166 is about 81311.4393305149. The cubic root of 6611550166 is about 1876.8710369249.

It can be divided in two parts, 66115 and 50166, that added together give a square (116281 = 341²).

The spelling of 6611550166 in words is "six billion, six hundred eleven million, five hundred fifty thousand, one hundred sixty-six".