1066166511 has 32 divisors (see below), whose sum is σ = 1475262720. Its totient is φ = 684600576.

The previous prime is 1066166503. The next prime is 1066166567. The reversal of 1066166511 is 1156616601.

It is not a de Polignac number, because 1066166511 - 2³ = 1066166503 is a prime.

It is a super-2 number, since 2×1066166511² = 2273422058355826242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066166111) by changing a digit.

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, 1913845 + ... + 1914401.

It is an arithmetic number, because the mean of its divisors is an integer number (46101960).

Almost surely, 2^1066166511 is an apocalyptic number.

1066166511 is a deficient number, since it is larger than the sum of its proper divisors (409096209).

1066166511 is a wasteful number, since it uses less digits than its factorization.

1066166511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823.

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

The square root of 1066166511 is about 32652.2053007144. The cubic root of 1066166511 is about 1021.5861873890.

The spelling of 1066166511 in words is "one billion, sixty-six million, one hundred sixty-six thousand, five hundred eleven".