16199556554 has 16 divisors (see below), whose sum is σ = 24357125088. Its totient is φ = 8080537872.

The previous prime is 16199556523. The next prime is 16199556559. The reversal of 16199556554 is 45565599161.

16199556554 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 16199556554.

It is not an unprimeable number, because it can be changed into a prime (16199556559) 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, 1684949 + ... + 1694535.

It is an arithmetic number, because the mean of its divisors is an integer number (1522320318).

Almost surely, 2^16199556554 is an apocalyptic number.

16199556554 is a deficient number, since it is larger than the sum of its proper divisors (8157568534).

16199556554 is a wasteful number, since it uses less digits than its factorization.

16199556554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11509.

The product of its digits is 7290000, while the sum is 56.

The spelling of 16199556554 in words is "sixteen billion, one hundred ninety-nine million, five hundred fifty-six thousand, five hundred fifty-four".