15643341642 has 8 divisors (see below), whose sum is σ = 31286683296. Its totient is φ = 5214447212.

The previous prime is 15643341641. The next prime is 15643341653. The reversal of 15643341642 is 24614334651.

15643341642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

15643341642 is an admirable number.

It is a super-3 number, since 3×15643341642³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15643341642.

It is not an unprimeable number, because it can be changed into a prime (15643341641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303611798 + ... + 1303611809.

It is an arithmetic number, because the mean of its divisors is an integer number (3910835412).

Almost surely, 2^15643341642 is an apocalyptic number.

15643341642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15643341642 is a wasteful number, since it uses less digits than its factorization.

15643341642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607223612.

The product of its digits is 207360, while the sum is 39.

The spelling of 15643341642 in words is "fifteen billion, six hundred forty-three million, three hundred forty-one thousand, six hundred forty-two".