168342053820 has 48 divisors (see below), whose sum is σ = 471432238368. Its totient is φ = 44884120320.

The previous prime is 168342053819. The next prime is 168342053833. The reversal of 168342053820 is 28350243861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166782 + ... + 603738.

It is an arithmetic number, because the mean of its divisors is an integer number (9821504966).

Almost surely, 2^168342053820 is an apocalyptic number.

168342053820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168342053820 is an abundant number, since it is smaller than the sum of its proper divisors (303090184548).

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

168342053820 is a wasteful number, since it uses less digits than its factorization.

168342053820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443390 (or 443388 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 168342053820 in words is "one hundred sixty-eight billion, three hundred forty-two million, fifty-three thousand, eight hundred twenty".