168211345424215 has 16 divisors (see below), whose sum is σ = 203547729701088. Its totient is φ = 133444121481216.

The previous prime is 168211345424189. The next prime is 168211345424249. The reversal of 168211345424215 is 512424543112861.

It is a cyclic number.

It is not a de Polignac number, because 168211345424215 - 2¹⁷ = 168211345293143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278152069 + ... + 278756158.

It is an arithmetic number, because the mean of its divisors is an integer number (12721733106318).

Almost surely, 2^{168211345424215} is an apocalyptic number.

168211345424215 is a deficient number, since it is larger than the sum of its proper divisors (35336384276873).

168211345424215 is a wasteful number, since it uses less digits than its factorization.

168211345424215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556908738.

The product of its digits is 1843200, while the sum is 49.

The spelling of 168211345424215 in words is "one hundred sixty-eight trillion, two hundred eleven billion, three hundred forty-five million, four hundred twenty-four thousand, two hundred fifteen".