1166601651 has 8 divisors (see below), whose sum is σ = 1555899840. Its totient is φ = 777518952.

The previous prime is 1166601649. The next prime is 1166601697. The reversal of 1166601651 is 1561066611.

1166601651 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1166601651 - 2¹ = 1166601649 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1166601851) 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, 40785 + ... + 63218.

It is an arithmetic number, because the mean of its divisors is an integer number (194487480).

Almost surely, 2^1166601651 is an apocalyptic number.

1166601651 is a deficient number, since it is larger than the sum of its proper divisors (389298189).

1166601651 is a wasteful number, since it uses less digits than its factorization.

1166601651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107745.

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

The square root of 1166601651 is about 34155.5508080312. The cubic root of 1166601651 is about 1052.7070438971.

The spelling of 1166601651 in words is "one billion, one hundred sixty-six million, six hundred one thousand, six hundred fifty-one".