16530555542 has 8 divisors (see below), whose sum is σ = 24803672256. Its totient is φ = 8262664792.

The previous prime is 16530555539. The next prime is 16530555577. The reversal of 16530555542 is 24555503561.

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

It is a self number, because there is not a number n which added to its sum of digits gives 16530555542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1298573 + ... + 1311240.

It is an arithmetic number, because the mean of its divisors is an integer number (3100459032).

Almost surely, 2^16530555542 is an apocalyptic number.

16530555542 is a deficient number, since it is larger than the sum of its proper divisors (8273116714).

16530555542 is a wasteful number, since it uses less digits than its factorization.

16530555542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612982.

The product of its (nonzero) digits is 450000, while the sum is 41.

The spelling of 16530555542 in words is "sixteen billion, five hundred thirty million, five hundred fifty-five thousand, five hundred forty-two".