169801220160 has 1120 divisors, whose sum is σ = 722202776064. Its totient is φ = 37324800000.

The previous prime is 169801220117. The next prime is 169801220161. The reversal of 169801220160 is 61022108961.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (169801220161) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 226099785 + ... + 226100535.

Almost surely, 2^169801220160 is an apocalyptic number.

169801220160 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 169801220160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361101388032).

169801220160 is an abundant number, since it is smaller than the sum of its proper divisors (552401555904).

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

169801220160 is a wasteful number, since it uses less digits than its factorization.

169801220160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 169801220160 in words is "one hundred sixty-nine billion, eight hundred one million, two hundred twenty thousand, one hundred sixty".