156834322242 has 64 divisors (see below), whose sum is σ = 348865937280. Its totient is φ = 46690020864.

The previous prime is 156834322223. The next prime is 156834322289. The reversal of 156834322242 is 242223438651.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 156834322194 and 156834322203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364798 + ... + 668390.

It is an arithmetic number, because the mean of its divisors is an integer number (5451030270).

Almost surely, 2^156834322242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156834322242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174432968640).

156834322242 is an abundant number, since it is smaller than the sum of its proper divisors (192031615038).

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

156834322242 is a wasteful number, since it uses less digits than its factorization.

156834322242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303827.

The product of its digits is 552960, while the sum is 42.

The spelling of 156834322242 in words is "one hundred fifty-six billion, eight hundred thirty-four million, three hundred twenty-two thousand, two hundred forty-two".