1166001795 has 36 divisors (see below), whose sum is σ = 2351044800. Its totient is φ = 533028384.

The previous prime is 1166001779. The next prime is 1166001817. The reversal of 1166001795 is 5971006611.

It is a happy number.

It is not a de Polignac number, because 1166001795 - 2⁴ = 1166001779 is a prime.

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 35 ways as a sum of consecutive naturals, for example, 262195 + ... + 266604.

It is an arithmetic number, because the mean of its divisors is an integer number (65306800).

Almost surely, 2^1166001795 is an apocalyptic number.

1166001795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166001795 is an abundant number, since it is smaller than the sum of its proper divisors (1185043005).

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

1166001795 is a wasteful number, since it uses less digits than its factorization.

1166001795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528824 (or 528814 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 1166001795 is about 34146.7684415378. The cubic root of 1166001795 is about 1052.5265821547.

The spelling of 1166001795 in words is "one billion, one hundred sixty-six million, one thousand, seven hundred ninety-five".