16550111156 has 12 divisors (see below), whose sum is σ = 29018076192. Its totient is φ = 8259232248.

The previous prime is 16550111141. The next prime is 16550111159. The reversal of 16550111156 is 65111105561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16550111159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3953480 + ... + 3957663.

It is an arithmetic number, because the mean of its divisors is an integer number (2418173016).

Almost surely, 2^16550111156 is an apocalyptic number.

It is an amenable number.

16550111156 is a deficient number, since it is larger than the sum of its proper divisors (12467965036).

16550111156 is a wasteful number, since it uses less digits than its factorization.

16550111156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7911670 (or 7911668 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 16550111156 in words is "sixteen billion, five hundred fifty million, one hundred eleven thousand, one hundred fifty-six".