168850536820520 has 64 divisors (see below), whose sum is σ = 380412389952000. Its totient is φ = 67451606392320.

The previous prime is 168850536820519. The next prime is 168850536820579. The reversal of 168850536820520 is 25028635058861.

It is a self number, because there is not a number n which added to its sum of digits gives 168850536820520.

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, 116389457 + ... + 117831263.

It is an arithmetic number, because the mean of its divisors is an integer number (5943943593000).

Almost surely, 2^{168850536820520} is an apocalyptic number.

168850536820520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168850536820520 is an abundant number, since it is smaller than the sum of its proper divisors (211561853131480).

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

168850536820520 is a wasteful number, since it uses less digits than its factorization.

168850536820520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445658 (or 1445654 counting only the distinct ones).

The product of its (nonzero) digits is 27648000, while the sum is 59.

The spelling of 168850536820520 in words is "one hundred sixty-eight trillion, eight hundred fifty billion, five hundred thirty-six million, eight hundred twenty thousand, five hundred twenty".