16681213142 has 8 divisors (see below), whose sum is σ = 27296530632. Its totient is φ = 7582369600.

The previous prime is 16681213141. The next prime is 16681213147. The reversal of 16681213142 is 24131218661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16681213141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379118459 + ... + 379118502.

It is an arithmetic number, because the mean of its divisors is an integer number (3412066329).

Almost surely, 2^16681213142 is an apocalyptic number.

16681213142 is a deficient number, since it is larger than the sum of its proper divisors (10615317490).

16681213142 is a wasteful number, since it uses less digits than its factorization.

16681213142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758236974.

The product of its digits is 13824, while the sum is 35.

The spelling of 16681213142 in words is "sixteen billion, six hundred eighty-one million, two hundred thirteen thousand, one hundred forty-two".