168706723534 has 16 divisors (see below), whose sum is σ = 256417873920. Its totient is φ = 83235386520.

The previous prime is 168706723463. The next prime is 168706723571. The reversal of 168706723534 is 435327607861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58282 + ... + 583789.

It is an arithmetic number, because the mean of its divisors is an integer number (16026117120).

Almost surely, 2^168706723534 is an apocalyptic number.

168706723534 is a deficient number, since it is larger than the sum of its proper divisors (87711150386).

168706723534 is a wasteful number, since it uses less digits than its factorization.

168706723534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643815.

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 168706723534 in words is "one hundred sixty-eight billion, seven hundred six million, seven hundred twenty-three thousand, five hundred thirty-four".