20454152000 has 168 divisors, whose sum is σ = 51363521352. Its totient is φ = 8068608000.

The previous prime is 20454151969. The next prime is 20454152027. The reversal of 20454152000 is 25145402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 133079296 + 20321072704 = 11536^2 + 142552^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84871880 + ... + 84872120.

Almost surely, 2^20454152000 is an apocalyptic number.

20454152000 is a gapful number since it is divisible by the number (20) 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 20454152000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25681760676).

20454152000 is an abundant number, since it is smaller than the sum of its proper divisors (30909369352).

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

20454152000 is an equidigital number, since it uses as much as digits as its factorization.

20454152000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 20454152000 its reverse (25145402), we get a palindrome (20479297402).

The spelling of 20454152000 in words is "twenty billion, four hundred fifty-four million, one hundred fifty-two thousand".