168040893300 has 72 divisors (see below), whose sum is σ = 555655227456. Its totient is φ = 38409346560.

The previous prime is 168040893299. The next prime is 168040893301. The reversal of 168040893300 is 3398040861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (168040893299) and next prime (168040893301).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168040893301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40007637 + ... + 40011836.

Almost surely, 2^168040893300 is an apocalyptic number.

168040893300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168040893300 is an abundant number, since it is smaller than the sum of its proper divisors (387614334156).

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

168040893300 is a wasteful number, since it uses less digits than its factorization.

168040893300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80019497 (or 80019490 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 168040893300 in words is "one hundred sixty-eight billion, forty million, eight hundred ninety-three thousand, three hundred".