1161633432 has 16 divisors (see below), whose sum is σ = 2904083640. Its totient is φ = 387211136.

The previous prime is 1161633427. The next prime is 1161633437. The reversal of 1161633432 is 2343361611.

It is an interprime number because it is at equal distance from previous prime (1161633427) and next prime (1161633437).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1161633432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161633437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24200673 + ... + 24200720.

Almost surely, 2^1161633432 is an apocalyptic number.

1161633432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1161633432 is an abundant number, since it is smaller than the sum of its proper divisors (1742450208).

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

1161633432 is a wasteful number, since it uses less digits than its factorization.

1161633432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48401402 (or 48401398 counting only the distinct ones).

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

The square root of 1161633432 is about 34082.7439036237. The cubic root of 1161633432 is about 1051.2105258659.

The spelling of 1161633432 in words is "one billion, one hundred sixty-one million, six hundred thirty-three thousand, four hundred thirty-two".