16442625646634 has 32 divisors (see below), whose sum is σ = 27171474890112. Its totient is φ = 7462075420800.

The previous prime is 16442625646633. The next prime is 16442625646691. The reversal of 16442625646634 is 43664652624461.

It is a super-3 number, since 3×16442625646634³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16442625646633) 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, 3214727 + ... + 6574170.

It is an arithmetic number, because the mean of its divisors is an integer number (849108590316).

Almost surely, 2^{16442625646634} is an apocalyptic number.

16442625646634 is a deficient number, since it is larger than the sum of its proper divisors (10728849243478).

16442625646634 is an equidigital number, since it uses as much as digits as its factorization.

16442625646634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9789563 (or 9789541 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 59.

The spelling of 16442625646634 in words is "sixteen trillion, four hundred forty-two billion, six hundred twenty-five million, six hundred forty-six thousand, six hundred thirty-four".