168135415774 has 8 divisors (see below), whose sum is σ = 252352096920. Its totient is φ = 84018050136.

The previous prime is 168135415727. The next prime is 168135415823. The reversal of 168135415774 is 477514531861.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24824644 + ... + 24831415.

It is an arithmetic number, because the mean of its divisors is an integer number (31544012115).

Almost surely, 2^168135415774 is an apocalyptic number.

168135415774 is a deficient number, since it is larger than the sum of its proper divisors (84216681146).

168135415774 is a wasteful number, since it uses less digits than its factorization.

168135415774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49657754.

The product of its digits is 2822400, while the sum is 52.

The spelling of 168135415774 in words is "one hundred sixty-eight billion, one hundred thirty-five million, four hundred fifteen thousand, seven hundred seventy-four".