168921453711 has 8 divisors (see below), whose sum is σ = 225519977520. Its totient is φ = 112468616192.

The previous prime is 168921453703. The next prime is 168921453739. The reversal of 168921453711 is 117354129861.

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

It is a cyclic number.

It is not a de Polignac number, because 168921453711 - 2³ = 168921453703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168921453791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36418866 + ... + 36423503.

It is an arithmetic number, because the mean of its divisors is an integer number (28189997190).

Almost surely, 2^168921453711 is an apocalyptic number.

168921453711 is a deficient number, since it is larger than the sum of its proper divisors (56598523809).

168921453711 is an equidigital number, since it uses as much as digits as its factorization.

168921453711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72843145.

The product of its digits is 362880, while the sum is 48.

The spelling of 168921453711 in words is "one hundred sixty-eight billion, nine hundred twenty-one million, four hundred fifty-three thousand, seven hundred eleven".