15801943352 has 32 divisors (see below), whose sum is σ = 31931165280. Its totient is φ = 7287857280.

The previous prime is 15801943331. The next prime is 15801943357. The reversal of 15801943352 is 25334910851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15801943357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88613 + ... + 198635.

It is an arithmetic number, because the mean of its divisors is an integer number (997848915).

Almost surely, 2^15801943352 is an apocalyptic number.

It is an amenable number.

15801943352 is an abundant number, since it is smaller than the sum of its proper divisors (16129221928).

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

15801943352 is a wasteful number, since it uses less digits than its factorization.

15801943352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111423 (or 111419 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 15801943352 in words is "fifteen billion, eight hundred one million, nine hundred forty-three thousand, three hundred fifty-two".