16651636142 has 8 divisors (see below), whose sum is σ = 25448727096. Its totient is φ = 8168727112.

The previous prime is 16651636129. The next prime is 16651636159. The reversal of 16651636142 is 24163615661.

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 16651636142.

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, 78545348 + ... + 78545559.

It is an arithmetic number, because the mean of its divisors is an integer number (3181090887).

Almost surely, 2^16651636142 is an apocalyptic number.

16651636142 is a deficient number, since it is larger than the sum of its proper divisors (8797090954).

16651636142 is a wasteful number, since it uses less digits than its factorization.

16651636142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157090962.

The product of its digits is 155520, while the sum is 41.

The spelling of 16651636142 in words is "sixteen billion, six hundred fifty-one million, six hundred thirty-six thousand, one hundred forty-two".