20541142400 has 48 divisors (see below), whose sum is σ = 50743048740. Its totient is φ = 8216455680.

The previous prime is 20541142399. The next prime is 20541142409. The reversal of 20541142400 is 424114502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20541142409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3206354 + ... + 3212753.

Almost surely, 2^20541142400 is an apocalyptic number.

20541142400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20541142400 is an abundant number, since it is smaller than the sum of its proper divisors (30201906340).

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

20541142400 is an equidigital number, since it uses as much as digits as its factorization.

20541142400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6419131 (or 6419114 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 20541142400 its reverse (424114502), we get a palindrome (20965256902).

The spelling of 20541142400 in words is "twenty billion, five hundred forty-one million, one hundred forty-two thousand, four hundred".