16686851850002 has 16 divisors (see below), whose sum is σ = 25707361148352. Its totient is φ = 8117741807280.

The previous prime is 16686851849971. The next prime is 16686851850017. The reversal of 16686851850002 is 20005815868661.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16686851850002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692333 + ... + 5818335.

It is an arithmetic number, because the mean of its divisors is an integer number (1606710071772).

Almost surely, 2^{16686851850002} is an apocalyptic number.

16686851850002 is a deficient number, since it is larger than the sum of its proper divisors (9020509298350).

16686851850002 is a wasteful number, since it uses less digits than its factorization.

16686851850002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5170033.

The product of its (nonzero) digits is 5529600, while the sum is 56.

The spelling of 16686851850002 in words is "sixteen trillion, six hundred eighty-six billion, eight hundred fifty-one million, eight hundred fifty thousand, two".