16042345442 has 6 divisors (see below), whose sum is σ = 24063786849. Its totient is φ = 8021083160.

The previous prime is 16042345433. The next prime is 16042345457. The reversal of 16042345442 is 24454324061.

It can be written as a sum of positive squares in 2 ways, for example, as 14609798641 + 1432546801 = 120871^2 + 37849^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=89561.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 134342 + ... + 223902.

Almost surely, 2^16042345442 is an apocalyptic number.

16042345442 is a deficient number, since it is larger than the sum of its proper divisors (8021441407).

16042345442 is an frugal number, since it uses more digits than its factorization.

16042345442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179124 (or 89563 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 16042345442 in words is "sixteen billion, forty-two million, three hundred forty-five thousand, four hundred forty-two".