1166451143 has 8 divisors (see below), whose sum is σ = 1370376336. Its totient is φ = 978840000.

The previous prime is 1166451131. The next prime is 1166451149. The reversal of 1166451143 is 3411546611.

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 1166451143 - 2¹⁶ = 1166385607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166451149) 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, 4078358 + ... + 4078643.

It is an arithmetic number, because the mean of its divisors is an integer number (171297042).

Almost surely, 2^1166451143 is an apocalyptic number.

1166451143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1166451143 is a deficient number, since it is larger than the sum of its proper divisors (203925193).

1166451143 is a wasteful number, since it uses less digits than its factorization.

1166451143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157025.

The product of its digits is 8640, while the sum is 32.

The square root of 1166451143 is about 34153.3474640481. The cubic root of 1166451143 is about 1052.6617706181.

Adding to 1166451143 its reverse (3411546611), we get a palindrome (4577997754).

The spelling of 1166451143 in words is "one billion, one hundred sixty-six million, four hundred fifty-one thousand, one hundred forty-three".