16663350642 has 32 divisors (see below), whose sum is σ = 34990488000. Its totient is φ = 5282870208.

The previous prime is 16663350623. The next prime is 16663350647. The reversal of 16663350642 is 24605336661.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16663350594 and 16663350603.

It is not an unprimeable number, because it can be changed into a prime (16663350647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703017 + ... + 726332.

It is an arithmetic number, because the mean of its divisors is an integer number (1093452750).

Almost surely, 2^16663350642 is an apocalyptic number.

16663350642 is an abundant number, since it is smaller than the sum of its proper divisors (18327137358).

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

16663350642 is a wasteful number, since it uses less digits than its factorization.

16663350642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429450.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 16663350642 in words is "sixteen billion, six hundred sixty-three million, three hundred fifty thousand, six hundred forty-two".