156242111171328 has 432 divisors, whose sum is σ = 554807671891200. Its totient is φ = 41179570200576.

The previous prime is 156242111171249. The next prime is 156242111171353. The reversal of 156242111171328 is 823171111242651.

156242111171328 is a `hidden beast` number, since 1 + 5 + 6 + 2 + 42 + 111 + 171 + 328 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 319073623 + ... + 319562921.

Almost surely, 2^{156242111171328} is an apocalyptic number.

156242111171328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156242111171328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277403835945600).

156242111171328 is an abundant number, since it is smaller than the sum of its proper divisors (398565560719872).

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

156242111171328 is a wasteful number, since it uses less digits than its factorization.

156242111171328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490864 (or 490847 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The spelling of 156242111171328 in words is "one hundred fifty-six trillion, two hundred forty-two billion, one hundred eleven million, one hundred seventy-one thousand, three hundred twenty-eight".