20455546245200 has 180 divisors, whose sum is σ = 54669112973664. Its totient is φ = 7348759968000.

The previous prime is 20455546245149. The next prime is 20455546245203. The reversal of 20455546245200 is 254264555402.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20455546245203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1471205 + ... + 6563195.

Almost surely, 2^{20455546245200} is an apocalyptic number.

20455546245200 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 20455546245200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27334556486832).

20455546245200 is an abundant number, since it is smaller than the sum of its proper divisors (34213566728464).

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

20455546245200 is a wasteful number, since it uses less digits than its factorization.

20455546245200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092114 (or 5092092 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 44.

The spelling of 20455546245200 in words is "twenty trillion, four hundred fifty-five billion, five hundred forty-six million, two hundred forty-five thousand, two hundred".