421168000000 has 308 divisors, whose sum is σ = 1148544204696. Its totient is φ = 153088000000.

The previous prime is 421167999997. The next prime is 421168000009. The reversal of 421168000000 is 861124.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (421168000009) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 175998804 + ... + 176001196.

Almost surely, 2^421168000000 is an apocalyptic number.

421168000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421168000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574272102348).

421168000000 is an abundant number, since it is smaller than the sum of its proper divisors (727376204696).

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

421168000000 is an frugal number, since it uses more digits than its factorization.

421168000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454 (or 2411 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 421168000000 its reverse (861124), we get a palindrome (421168861124).

The spelling of 421168000000 in words is "four hundred twenty-one billion, one hundred sixty-eight million", and thus it is an aban number.