20054445100000 has 72 divisors (see below), whose sum is σ = 49349577659256. Its totient is φ = 8021778000000.

The previous prime is 20054445099989. The next prime is 20054445100007. The reversal of 20054445100000 is 154445002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054445100007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100172226 + ... + 100372225.

It is an arithmetic number, because the mean of its divisors is an integer number (685410800823).

Almost surely, 2^{20054445100000} is an apocalyptic number.

20054445100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20054445100000 is an abundant number, since it is smaller than the sum of its proper divisors (29295132559256).

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

20054445100000 is an frugal number, since it uses more digits than its factorization.

20054445100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200544486 (or 200544458 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 20054445100000 its reverse (154445002), we get a palindrome (20054599545002).

The spelling of 20054445100000 in words is "twenty trillion, fifty-four billion, four hundred forty-five million, one hundred thousand".