1163994624 has 400 divisors, whose sum is σ = 3992744448. Its totient is φ = 334430208.

The previous prime is 1163994589. The next prime is 1163994631. The reversal of 1163994624 is 4264993611.

1163994624 is a `hidden beast` number, since 1 + 1 + 639 + 9 + 4 + 6 + 2 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (279936) is a multiple of the sum of its prime divisors (162).

It is a self number, because there is not a number n which added to its sum of digits gives 1163994624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9165249 + ... + 9165375.

Almost surely, 2^1163994624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1163994624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1996372224).

1163994624 is an abundant number, since it is smaller than the sum of its proper divisors (2828749824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1163994624 is a wasteful number, since it uses less digits than its factorization.

1163994624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 162 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 1163994624 is about 34117.3654316977. The cubic root of 1163994624 is about 1051.9222908571.

The spelling of 1163994624 in words is "one billion, one hundred sixty-three million, nine hundred ninety-four thousand, six hundred twenty-four".