1166878039 has 8 divisors (see below), whose sum is σ = 1179389952. Its totient is φ = 1154389080.

The previous prime is 1166878007. The next prime is 1166878049. The reversal of 1166878039 is 9308786611.

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

It is a cyclic number.

It is not a de Polignac number, because 1166878039 - 2⁵ = 1166878007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1166877983 and 1166878001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166878049) 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, 108474 + ... + 118744.

It is an arithmetic number, because the mean of its divisors is an integer number (147423744).

Almost surely, 2^1166878039 is an apocalyptic number.

1166878039 is a deficient number, since it is larger than the sum of its proper divisors (12511913).

1166878039 is a wasteful number, since it uses less digits than its factorization.

1166878039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11477.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 1166878039 is about 34159.5965871964. The cubic root of 1166878039 is about 1052.7901721353.

The spelling of 1166878039 in words is "one billion, one hundred sixty-six million, eight hundred seventy-eight thousand, thirty-nine".