168150549629 has 2 divisors, whose sum is σ = 168150549630. Its totient is φ = 168150549628.

The previous prime is 168150549569. The next prime is 168150549631. The reversal of 168150549629 is 926945051861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168122140729 + 28408900 = 410027^2 + 5330^2 .

It is a cyclic number.

It is not a de Polignac number, because 168150549629 - 2¹² = 168150545533 is a prime.

Together with 168150549631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168156549629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84075274814 + 84075274815.

It is an arithmetic number, because the mean of its divisors is an integer number (84075274815).

Almost surely, 2^168150549629 is an apocalyptic number.

It is an amenable number.

168150549629 is a deficient number, since it is larger than the sum of its proper divisors (1).

168150549629 is an equidigital number, since it uses as much as digits as its factorization.

168150549629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The spelling of 168150549629 in words is "one hundred sixty-eight billion, one hundred fifty million, five hundred forty-nine thousand, six hundred twenty-nine".