169949669796 has 18 divisors (see below), whose sum is σ = 429594998742. Its totient is φ = 56649889920.

The previous prime is 169949669723. The next prime is 169949669807. The reversal of 169949669796 is 697966949961.

169949669796 is a `hidden beast` number, since 1 + 69 + 9 + 496 + 69 + 7 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111028904100 + 58920765696 = 333210^2 + 242736^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2360412045 + ... + 2360412116.

It is an arithmetic number, because the mean of its divisors is an integer number (23866388819).

Almost surely, 2^169949669796 is an apocalyptic number.

It is an amenable number.

169949669796 is an abundant number, since it is smaller than the sum of its proper divisors (259645328946).

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

169949669796 is a wasteful number, since it uses less digits than its factorization.

169949669796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720824171 (or 4720824166 counting only the distinct ones).

The product of its digits is 2142770112, while the sum is 81.

The spelling of 169949669796 in words is "one hundred sixty-nine billion, nine hundred forty-nine million, six hundred sixty-nine thousand, seven hundred ninety-six".