16068421542 has 16 divisors (see below), whose sum is σ = 32182695792. Its totient is φ = 5348498400.

The previous prime is 16068421517. The next prime is 16068421571. The reversal of 16068421542 is 24512486061.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16068421542.

It is a congruent number.

It is an unprimeable number.

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, 1905973 + ... + 1914384.

It is an arithmetic number, because the mean of its divisors is an integer number (2011418487).

Almost surely, 2^16068421542 is an apocalyptic number.

16068421542 is an abundant number, since it is smaller than the sum of its proper divisors (16114274250).

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

16068421542 is a wasteful number, since it uses less digits than its factorization.

16068421542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821063.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 16068421542 in words is "sixteen billion, sixty-eight million, four hundred twenty-one thousand, five hundred forty-two".