168775118923930 has 8 divisors (see below), whose sum is σ = 303795214063092. Its totient is φ = 67510047569568.

The previous prime is 168775118923909. The next prime is 168775118923937. The reversal of 168775118923930 is 39329811577861.

It can be written as a sum of positive squares in 2 ways, for example, as 152940537149569 + 15834581774361 = 12366913^2 + 3979269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×168775118923930² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168775118923930.

It is not an unprimeable number, because it can be changed into a prime (168775118923937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8438755946187 + ... + 8438755946206.

Almost surely, 2^{168775118923930} is an apocalyptic number.

168775118923930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168775118923930 is a deficient number, since it is larger than the sum of its proper divisors (135020095139162).

168775118923930 is a wasteful number, since it uses less digits than its factorization.

168775118923930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16877511892400.

The product of its (nonzero) digits is 137168640, while the sum is 70.

The spelling of 168775118923930 in words is "one hundred sixty-eight trillion, seven hundred seventy-five billion, one hundred eighteen million, nine hundred twenty-three thousand, nine hundred thirty".