168950921613 has 8 divisors (see below), whose sum is σ = 225486394176. Its totient is φ = 112524698400.

The previous prime is 168950921597. The next prime is 168950921617. The reversal of 168950921613 is 316129059861.

168950921613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 168950921613 - 2⁴ = 168950921597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168950921617) 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 in 7 ways as a sum of consecutive naturals, for example, 27308728 + ... + 27314913.

It is an arithmetic number, because the mean of its divisors is an integer number (28185799272).

Almost surely, 2^168950921613 is an apocalyptic number.

It is an amenable number.

168950921613 is a deficient number, since it is larger than the sum of its proper divisors (56535472563).

168950921613 is a wasteful number, since it uses less digits than its factorization.

168950921613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54624675.

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 168950921613 in words is "one hundred sixty-eight billion, nine hundred fifty million, nine hundred twenty-one thousand, six hundred thirteen".