168515348550 has 24 divisors (see below), whose sum is σ = 417918064776. Its totient is φ = 44937426240.

The previous prime is 168515348539. The next prime is 168515348563. The reversal of 168515348550 is 55843515861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 168515348493 and 168515348502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561717679 + ... + 561717978.

It is an arithmetic number, because the mean of its divisors is an integer number (17413252699).

Almost surely, 2^168515348550 is an apocalyptic number.

168515348550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168515348550 is an abundant number, since it is smaller than the sum of its proper divisors (249402716226).

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

168515348550 is a wasteful number, since it uses less digits than its factorization.

168515348550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123435672 (or 1123435667 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 51.

The spelling of 168515348550 in words is "one hundred sixty-eight billion, five hundred fifteen million, three hundred forty-eight thousand, five hundred fifty".