16221547342 has 64 divisors (see below), whose sum is σ = 32724292608. Its totient is φ = 5824224000.

The previous prime is 16221547333. The next prime is 16221547367. The reversal of 16221547342 is 24374512261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1256842 + ... + 1269682.

It is an arithmetic number, because the mean of its divisors is an integer number (511317072).

Almost surely, 2^16221547342 is an apocalyptic number.

16221547342 is an abundant number, since it is smaller than the sum of its proper divisors (16502745266).

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

16221547342 is a wasteful number, since it uses less digits than its factorization.

16221547342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13505.

The product of its digits is 80640, while the sum is 37.

The spelling of 16221547342 in words is "sixteen billion, two hundred twenty-one million, five hundred forty-seven thousand, three hundred forty-two".