168353520550 has 24 divisors (see below), whose sum is σ = 321600728736. Its totient is φ = 65521369440.

The previous prime is 168353520547. The next prime is 168353520551. The reversal of 168353520550 is 55025353861.

It is a junction number, because it is equal to n+sod(n) for n = 168353520497 and 168353520506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168353520551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45499102 + ... + 45502801.

It is an arithmetic number, because the mean of its divisors is an integer number (13400030364).

Almost surely, 2^168353520550 is an apocalyptic number.

168353520550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168353520550 is a deficient number, since it is larger than the sum of its proper divisors (153247208186).

168353520550 is a wasteful number, since it uses less digits than its factorization.

168353520550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91001952 (or 91001947 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 168353520550 in words is "one hundred sixty-eight billion, three hundred fifty-three million, five hundred twenty thousand, five hundred fifty".