169005056 has 104 divisors (see below), whose sum is σ = 383731968. Its totient is φ = 74342400.

The previous prime is 169005047. The next prime is 169005061. The reversal of 169005056 is 650500961.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5451761 + ... + 5451791.

Almost surely, 2^169005056 is an apocalyptic number.

169005056 is a gapful number since it is divisible by the number (16) 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 169005056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191865984).

169005056 is an abundant number, since it is smaller than the sum of its proper divisors (214726912).

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

169005056 is an frugal number, since it uses more digits than its factorization.

169005056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 169005056 is about 13000.1944600840. The cubic root of 169005056 is about 552.8829948209.

The spelling of 169005056 in words is "one hundred sixty-nine million, five thousand, fifty-six".