168553520050 has 12 divisors (see below), whose sum is σ = 313509547386. Its totient is φ = 67421408000.

The previous prime is 168553520041. The next prime is 168553520053. The reversal of 168553520050 is 50025355861.

It can be written as a sum of positive squares in 3 ways, for example, as 135903559801 + 32649960249 = 368651^2 + 180693^2 .

It is a junction number, because it is equal to n+sod(n) for n = 168553519985 and 168553520012.

It is not an unprimeable number, because it can be changed into a prime (168553520053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1685535151 + ... + 1685535250.

Almost surely, 2^168553520050 is an apocalyptic number.

168553520050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168553520050 is a deficient number, since it is larger than the sum of its proper divisors (144956027336).

168553520050 is a wasteful number, since it uses less digits than its factorization.

168553520050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371070413 (or 3371070408 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 168553520050 in words is "one hundred sixty-eight billion, five hundred fifty-three million, five hundred twenty thousand, fifty".