1166071797 has 48 divisors (see below), whose sum is σ = 1864526976. Its totient is φ = 702187200.

The previous prime is 1166071787. The next prime is 1166071831. The reversal of 1166071797 is 7971706611.

It is not a de Polignac number, because 1166071797 - 2¹⁴ = 1166055413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166071717) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3725313 + ... + 3725625.

It is an arithmetic number, because the mean of its divisors is an integer number (38844312).

Almost surely, 2^1166071797 is an apocalyptic number.

It is an amenable number.

1166071797 is a deficient number, since it is larger than the sum of its proper divisors (698455179).

1166071797 is a wasteful number, since it uses less digits than its factorization.

1166071797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 45.

The square root of 1166071797 is about 34147.7934426223. The cubic root of 1166071797 is about 1052.5476448699.

The spelling of 1166071797 in words is "one billion, one hundred sixty-six million, seventy-one thousand, seven hundred ninety-seven".