16694620042 has 8 divisors (see below), whose sum is σ = 25160612832. Its totient is φ = 8307749100.

The previous prime is 16694620021. The next prime is 16694620049. The reversal of 16694620042 is 24002649661.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 16694619977 and 16694620004.

It is not an unprimeable number, because it can be changed into a prime (16694620049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19779934 + ... + 19780777.

It is an arithmetic number, because the mean of its divisors is an integer number (3145076604).

Almost surely, 2^16694620042 is an apocalyptic number.

16694620042 is a deficient number, since it is larger than the sum of its proper divisors (8465992790).

16694620042 is a wasteful number, since it uses less digits than its factorization.

16694620042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39560924.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 16694620042 in words is "sixteen billion, six hundred ninety-four million, six hundred twenty thousand, forty-two".