168856269434 has 4 divisors (see below), whose sum is σ = 253284404154. Its totient is φ = 84428134716.

The previous prime is 168856269431. The next prime is 168856269457. The reversal of 168856269434 is 434962658861.

168856269434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 101101741225 + 67754528209 = 317965^2 + 260297^2 .

It is not an unprimeable number, because it can be changed into a prime (168856269431) by changing a digit.

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 as a sum of consecutive naturals, namely, 42214067357 + ... + 42214067360.

Almost surely, 2^168856269434 is an apocalyptic number.

168856269434 is a deficient number, since it is larger than the sum of its proper divisors (84428134720).

168856269434 is an equidigital number, since it uses as much as digits as its factorization.

168856269434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84428134719.

The product of its digits is 59719680, while the sum is 62.

The spelling of 168856269434 in words is "one hundred sixty-eight billion, eight hundred fifty-six million, two hundred sixty-nine thousand, four hundred thirty-four".