16273899156 has 12 divisors (see below), whose sum is σ = 37972431392. Its totient is φ = 5424633048.

The previous prime is 16273899127. The next prime is 16273899157. The reversal of 16273899156 is 65199837261.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 16273899096 and 16273899105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16273899157) 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, 678079120 + ... + 678079143.

Almost surely, 2^16273899156 is an apocalyptic number.

It is an amenable number.

16273899156 is an abundant number, since it is smaller than the sum of its proper divisors (21698532236).

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

16273899156 is a wasteful number, since it uses less digits than its factorization.

16273899156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356158270 (or 1356158268 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The spelling of 16273899156 in words is "sixteen billion, two hundred seventy-three million, eight hundred ninety-nine thousand, one hundred fifty-six".