156842059242 has 32 divisors (see below), whose sum is σ = 342264533184. Its totient is φ = 47519052800.

The previous prime is 156842059189. The next prime is 156842059243. The reversal of 156842059242 is 242950248651.

It is a super-2 number, since 2×156842059242² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156842059191 and 156842059200.

It is not an unprimeable number, because it can be changed into a prime (156842059243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140728 + ... + 577484.

It is an arithmetic number, because the mean of its divisors is an integer number (10695766662).

Almost surely, 2^156842059242 is an apocalyptic number.

156842059242 is an abundant number, since it is smaller than the sum of its proper divisors (185422473942).

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

156842059242 is a wasteful number, since it uses less digits than its factorization.

156842059242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442214.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 156842059242 in words is "one hundred fifty-six billion, eight hundred forty-two million, fifty-nine thousand, two hundred forty-two".