1166056611 has 8 divisors (see below), whose sum is σ = 1556662464. Its totient is φ = 776410920.

The previous prime is 1166056609. The next prime is 1166056613. The reversal of 1166056611 is 1166506611.

It is an interprime number because it is at equal distance from previous prime (1166056609) and next prime (1166056613).

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

It is not a de Polignac number, because 1166056611 - 2¹ = 1166056609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1166056613) 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, 237201 + ... + 242066.

It is an arithmetic number, because the mean of its divisors is an integer number (194582808).

Almost surely, 2^1166056611 is an apocalyptic number.

1166056611 is a deficient number, since it is larger than the sum of its proper divisors (390605853).

1166056611 is an equidigital number, since it uses as much as digits as its factorization.

1166056611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480081.

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

The square root of 1166056611 is about 34147.5710849249. The cubic root of 1166056611 is about 1052.5430756664.

The spelling of 1166056611 in words is "one billion, one hundred sixty-six million, fifty-six thousand, six hundred eleven".