16229144856 has 32 divisors (see below), whose sum is σ = 40577050800. Its totient is φ = 5409156480.

The previous prime is 16229144851. The next prime is 16229144879. The reversal of 16229144856 is 65844192261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16229144851) 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, 249810 + ... + 307998.

Almost surely, 2^16229144856 is an apocalyptic number.

It is an amenable number.

16229144856 is an abundant number, since it is smaller than the sum of its proper divisors (24347905944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16229144856 is a wasteful number, since it uses less digits than its factorization.

16229144856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69819 (or 69815 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The spelling of 16229144856 in words is "sixteen billion, two hundred twenty-nine million, one hundred forty-four thousand, eight hundred fifty-six".