156111816 has 128 divisors (see below), whose sum is σ = 482734080. Its totient is φ = 41051136.

The previous prime is 156111811. The next prime is 156111853. The reversal of 156111816 is 618111651.

156111816 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (156111811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133651 + ... + 134813.

It is an arithmetic number, because the mean of its divisors is an integer number (3771360).

Almost surely, 2^156111816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156111816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241367040).

156111816 is an abundant number, since it is smaller than the sum of its proper divisors (326622264).

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

156111816 is a wasteful number, since it uses less digits than its factorization.

156111816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1239 counting only the distinct ones).

The product of its digits is 1440, while the sum is 30.

The square root of 156111816 is about 12494.4714173910. The cubic root of 156111816 is about 538.4498478634.

The spelling of 156111816 in words is "one hundred fifty-six million, one hundred eleven thousand, eight hundred sixteen".