20366225132400 has 540 divisors, whose sum is σ = 82254296584512. Its totient is φ = 4652938967040.

The previous prime is 20366225132381. The next prime is 20366225132447. The reversal of 20366225132400 is 423152266302.

20366225132400 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 622 + 5 + 1 + 3 + 24 + 0 + 0 = 666.

It is a super-2 number, since 2×20366225132400² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 389288644 + ... + 389340956.

Almost surely, 2^{20366225132400} is an apocalyptic number.

20366225132400 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 20366225132400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41127148292256).

20366225132400 is an abundant number, since it is smaller than the sum of its proper divisors (61888071452112).

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

20366225132400 is a wasteful number, since it uses less digits than its factorization.

20366225132400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54558 (or 54537 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 20366225132400 its reverse (423152266302), we get a palindrome (20789377398702).

The spelling of 20366225132400 in words is "twenty trillion, three hundred sixty-six billion, two hundred twenty-five million, one hundred thirty-two thousand, four hundred".