16445509342 has 4 divisors (see below), whose sum is σ = 24668264016. Its totient is φ = 8222754670.

The previous prime is 16445509271. The next prime is 16445509387. The reversal of 16445509342 is 24390554461.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4111377334 + ... + 4111377337.

It is an arithmetic number, because the mean of its divisors is an integer number (6167066004).

Almost surely, 2^16445509342 is an apocalyptic number.

16445509342 is a deficient number, since it is larger than the sum of its proper divisors (8222754674).

16445509342 is an equidigital number, since it uses as much as digits as its factorization.

16445509342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8222754673.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 16445509342 in words is "sixteen billion, four hundred forty-five million, five hundred nine thousand, three hundred forty-two".