1011566166 has 16 divisors (see below), whose sum is σ = 2178758064. Its totient is φ = 311251104.

The previous prime is 1011566093. The next prime is 1011566167. The reversal of 1011566166 is 6616651101.

1011566166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1011566166² = 2046532216391879112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011566167) 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, 6484321 + ... + 6484476.

It is an arithmetic number, because the mean of its divisors is an integer number (136172379).

Almost surely, 2^1011566166 is an apocalyptic number.

1011566166 is an abundant number, since it is smaller than the sum of its proper divisors (1167191898).

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

1011566166 is a wasteful number, since it uses less digits than its factorization.

1011566166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12968815.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1011566166 is about 31805.1279827640. The cubic root of 1011566166 is about 1003.8406194256.

The spelling of 1011566166 in words is "one billion, eleven million, five hundred sixty-six thousand, one hundred sixty-six".