1166870015 has 4 divisors (see below), whose sum is σ = 1400244024. Its totient is φ = 933496008.

The previous prime is 1166869993. The next prime is 1166870041. The reversal of 1166870015 is 5100786611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5100786611 = 53569 ⋅95219.

It is a cyclic number.

It is not a de Polignac number, because 1166870015 - 2²⁰ = 1165821439 is a prime.

It is a super-2 number, since 2×1166870015² = 2723171263812200450, which contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 116686997 + ... + 116687006.

It is an arithmetic number, because the mean of its divisors is an integer number (350061006).

Almost surely, 2^1166870015 is an apocalyptic number.

1166870015 is a deficient number, since it is larger than the sum of its proper divisors (233374009).

1166870015 is an equidigital number, since it uses as much as digits as its factorization.

1166870015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233374008.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 1166870015 is about 34159.4791383007. The cubic root of 1166870015 is about 1052.7877589703.

The spelling of 1166870015 in words is "one billion, one hundred sixty-six million, eight hundred seventy thousand, fifteen".