168736208708080 has 320 divisors, whose sum is σ = 429925925979648. Its totient is φ = 61211130900480.

The previous prime is 168736208708077. The next prime is 168736208708129. The reversal of 168736208708080 is 80807802637861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60198431959 + ... + 60198434761.

Almost surely, 2^{168736208708080} is an apocalyptic number.

168736208708080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168736208708080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214962962989824).

168736208708080 is an abundant number, since it is smaller than the sum of its proper divisors (261189717271568).

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

168736208708080 is a wasteful number, since it uses less digits than its factorization.

168736208708080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864 (or 4858 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 64.

The spelling of 168736208708080 in words is "one hundred sixty-eight trillion, seven hundred thirty-six billion, two hundred eight million, seven hundred eight thousand, eighty".