169015968 has 144 divisors (see below), whose sum is σ = 541562112. Its totient is φ = 49536000.

The previous prime is 169015949. The next prime is 169015991. The reversal of 169015968 is 869510961.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97348 + ... + 99068.

It is an arithmetic number, because the mean of its divisors is an integer number (3760848).

Almost surely, 2^169015968 is an apocalyptic number.

169015968 is a gapful number since it is divisible by the number (18) 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 169015968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270781056).

169015968 is an abundant number, since it is smaller than the sum of its proper divisors (372546144).

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

169015968 is a wasteful number, since it uses less digits than its factorization.

169015968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 169015968 is about 13000.6141393397. The cubic root of 169015968 is about 552.8948937339.

The spelling of 169015968 in words is "one hundred sixty-nine million, fifteen thousand, nine hundred sixty-eight".