156243343312 has 80 divisors (see below), whose sum is σ = 349689225600. Its totient is φ = 66243018240.

The previous prime is 156243343279. The next prime is 156243343327. The reversal of 156243343312 is 213343342651.

It is a happy number.

It is a super-2 number, since 2×156243343312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8035362 + ... + 8054782.

It is an arithmetic number, because the mean of its divisors is an integer number (4371115320).

Almost surely, 2^156243343312 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 156243343312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174844612800).

156243343312 is an abundant number, since it is smaller than the sum of its proper divisors (193445882288).

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

156243343312 is a wasteful number, since it uses less digits than its factorization.

156243343312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204 (or 20198 counting only the distinct ones).

The product of its digits is 155520, while the sum is 37.

Adding to 156243343312 its reverse (213343342651), we get a palindrome (369586685963).

The spelling of 156243343312 in words is "one hundred fifty-six billion, two hundred forty-three million, three hundred forty-three thousand, three hundred twelve".