1166881837 has 8 divisors (see below), whose sum is σ = 1273802400. Its totient is φ = 1060101360.

The previous prime is 1166881829. The next prime is 1166881843. The reversal of 1166881837 is 7381886611.

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 1166881837 - 2³ = 1166881829 is a prime.

It is a super-2 number, since 2×1166881837² = 2723226443040989138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166881897) 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, 17203 + ... + 51280.

It is an arithmetic number, because the mean of its divisors is an integer number (159225300).

Almost surely, 2^1166881837 is an apocalyptic number.

It is an amenable number.

1166881837 is a deficient number, since it is larger than the sum of its proper divisors (106920563).

1166881837 is a wasteful number, since it uses less digits than its factorization.

1166881837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70043.

The product of its digits is 387072, while the sum is 49.

The square root of 1166881837 is about 34159.6521791426. The cubic root of 1166881837 is about 1052.7913143549.

The spelling of 1166881837 in words is "one billion, one hundred sixty-six million, eight hundred eighty-one thousand, eight hundred thirty-seven".