1163400663 has 12 divisors (see below), whose sum is σ = 1574716920. Its totient is φ = 764015472.

The previous prime is 1163400659. The next prime is 1163400677. The reversal of 1163400663 is 3660043611.

It is not a de Polignac number, because 1163400663 - 2² = 1163400659 is a prime.

It is a super-2 number, since 2×1163400663² = 2707002205337679138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1163400663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163400863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29728 + ... + 56661.

It is an arithmetic number, because the mean of its divisors is an integer number (131226410).

Almost surely, 2^1163400663 is an apocalyptic number.

1163400663 is a deficient number, since it is larger than the sum of its proper divisors (411316257).

1163400663 is an frugal number, since it uses more digits than its factorization.

1163400663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86526 (or 86459 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1163400663 is about 34108.6596482477. The cubic root of 1163400663 is about 1051.7433361017.

The spelling of 1163400663 in words is "one billion, one hundred sixty-three million, four hundred thousand, six hundred sixty-three".