16363631232 has 384 divisors, whose sum is σ = 53884152000. Its totient is φ = 4859688960.

The previous prime is 16363631191. The next prime is 16363631239. The reversal of 16363631232 is 23213636361.

16363631232 is a `hidden beast` number, since 1 + 6 + 3 + 636 + 3 + 12 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (16363631239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43175619 + ... + 43175997.

Almost surely, 2^16363631232 is an apocalyptic number.

16363631232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16363631232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26942076000).

16363631232 is an abundant number, since it is smaller than the sum of its proper divisors (37520520768).

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

16363631232 is a wasteful number, since it uses less digits than its factorization.

16363631232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 428 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The spelling of 16363631232 in words is "sixteen billion, three hundred sixty-three million, six hundred thirty-one thousand, two hundred thirty-two".