16943621038 has 16 divisors (see below), whose sum is σ = 25576208496. Its totient is φ = 8418271680.

The previous prime is 16943621033. The next prime is 16943621059. The reversal of 16943621038 is 83012634961.

It is a junction number, because it is equal to n+sod(n) for n = 16943620985 and 16943621003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16943621033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677293 + ... + 701863.

It is an arithmetic number, because the mean of its divisors is an integer number (1598513031).

Almost surely, 2^16943621038 is an apocalyptic number.

16943621038 is a deficient number, since it is larger than the sum of its proper divisors (8632587458).

16943621038 is a wasteful number, since it uses less digits than its factorization.

16943621038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26739.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 16943621038 in words is "sixteen billion, nine hundred forty-three million, six hundred twenty-one thousand, thirty-eight".