1163966451 has 8 divisors (see below), whose sum is σ = 1619431680. Its totient is φ = 742239432.

The previous prime is 1163966449. The next prime is 1163966459. The reversal of 1163966451 is 1546693611.

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

It is not a de Polignac number, because 1163966451 - 2¹ = 1163966449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1163966459) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8434471 + ... + 8434608.

It is an arithmetic number, because the mean of its divisors is an integer number (202428960).

Almost surely, 2^1163966451 is an apocalyptic number.

1163966451 is a deficient number, since it is larger than the sum of its proper divisors (455465229).

1163966451 is a wasteful number, since it uses less digits than its factorization.

1163966451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16869105.

The product of its digits is 116640, while the sum is 42.

The square root of 1163966451 is about 34116.9525456187. The cubic root of 1163966451 is about 1051.9138039778.

The spelling of 1163966451 in words is "one billion, one hundred sixty-three million, nine hundred sixty-six thousand, four hundred fifty-one".