20455511541200 has 30 divisors (see below), whose sum is σ = 49144366478694. Its totient is φ = 8182204616320.

The previous prime is 20455511541181. The next prime is 20455511541239. The reversal of 20455511541200 is 214511555402.

It can be written as a sum of positive squares in 3 ways, for example, as 6297509946256 + 14158001594944 = 2509484^2 + 3762712^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25569389027 + ... + 25569389826.

Almost surely, 2^{20455511541200} is an apocalyptic number.

20455511541200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20455511541200 is an abundant number, since it is smaller than the sum of its proper divisors (28688854937494).

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

20455511541200 is a wasteful number, since it uses less digits than its factorization.

20455511541200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51138778871 (or 51138778860 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 20455511541200 in words is "twenty trillion, four hundred fifty-five billion, five hundred eleven million, five hundred forty-one thousand, two hundred".