168240057755356 has 6 divisors (see below), whose sum is σ = 294420101071880. Its totient is φ = 84120028877676.

The previous prime is 168240057755323. The next prime is 168240057755389. The reversal of 168240057755356 is 653557750042861.

It is an interprime number because it is at equal distance from previous prime (168240057755323) and next prime (168240057755389).

It is a super-2 number, since 2×168240057755356² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21030007219416 + ... + 21030007219423.

Almost surely, 2^{168240057755356} is an apocalyptic number.

It is an amenable number.

168240057755356 is a deficient number, since it is larger than the sum of its proper divisors (126180043316524).

168240057755356 is a wasteful number, since it uses less digits than its factorization.

168240057755356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42060014438843 (or 42060014438841 counting only the distinct ones).

The product of its (nonzero) digits is 211680000, while the sum is 64.

The spelling of 168240057755356 in words is "one hundred sixty-eight trillion, two hundred forty billion, fifty-seven million, seven hundred fifty-five thousand, three hundred fifty-six".