169142446100 has 18 divisors (see below), whose sum is σ = 367039108254. Its totient is φ = 67656978400.

The previous prime is 169142446079. The next prime is 169142446111. The reversal of 169142446100 is 1644241961.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21941311876 + 147201134224 = 148126^2 + 383668^2 .

It is a congruent number.

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, 845712131 + ... + 845712330.

Almost surely, 2^169142446100 is an apocalyptic number.

169142446100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169142446100 is an abundant number, since it is smaller than the sum of its proper divisors (197896662154).

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

169142446100 is a wasteful number, since it uses less digits than its factorization.

169142446100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691424475 (or 1691424468 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 169142446100 in words is "one hundred sixty-nine billion, one hundred forty-two million, four hundred forty-six thousand, one hundred".