16219920536 has 32 divisors (see below), whose sum is σ = 30539611440. Its totient is φ = 8076085248.

The previous prime is 16219920517. The next prime is 16219920553. The reversal of 16219920536 is 63502991261.

It is a congruent number.

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, 2549936 + ... + 2556288.

Almost surely, 2^16219920536 is an apocalyptic number.

It is an amenable number.

16219920536 is a deficient number, since it is larger than the sum of its proper divisors (14319690904).

16219920536 is a wasteful number, since it uses less digits than its factorization.

16219920536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7643 (or 7639 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 16219920536 in words is "sixteen billion, two hundred nineteen million, nine hundred twenty thousand, five hundred thirty-six".