168533683700 has 36 divisors (see below), whose sum is σ = 387230926572. Its totient is φ = 63447974400.

The previous prime is 168533683697. The next prime is 168533683709. The reversal of 168533683700 is 7386335861.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 23832566884 + 144701116816 = 154378^2 + 380396^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168533683709) 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, 49567031 + ... + 49570430.

It is an arithmetic number, because the mean of its divisors is an integer number (10756414627).

Almost surely, 2^168533683700 is an apocalyptic number.

168533683700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168533683700 is an abundant number, since it is smaller than the sum of its proper divisors (218697242872).

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

168533683700 is a wasteful number, since it uses less digits than its factorization.

168533683700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99137492 (or 99137485 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 168533683700 in words is "one hundred sixty-eight billion, five hundred thirty-three million, six hundred eighty-three thousand, seven hundred".