168605537364 has 168 divisors, whose sum is σ = 483689119872. Its totient is φ = 50977745280.

The previous prime is 168605537341. The next prime is 168605537371. The reversal of 168605537364 is 463735506861.

168605537364 is a `hidden beast` number, since 1 + 6 + 86 + 0 + 553 + 7 + 3 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 168605537364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 14845512 + ... + 14856864.

It is an arithmetic number, because the mean of its divisors is an integer number (2879101904).

Almost surely, 2^168605537364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168605537364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241844559936).

168605537364 is an abundant number, since it is smaller than the sum of its proper divisors (315083582508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168605537364 is a wasteful number, since it uses less digits than its factorization.

168605537364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11849 (or 11832 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 168605537364 in words is "one hundred sixty-eight billion, six hundred five million, five hundred thirty-seven thousand, three hundred sixty-four".