20055211040000 has 90 divisors (see below), whose sum is σ = 50024089331370. Its totient is φ = 8022084352000.

The previous prime is 20055211039961. The next prime is 20055211040063. The reversal of 20055211040000 is 4011255002.

It can be written as a sum of positive squares in 5 ways, for example, as 4358274171904 + 15696936868096 = 2087648^2 + 3961936^2 .

It is a super-2 number, since 2×20055211040000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62512535 + ... + 62832534.

It is an arithmetic number, because the mean of its divisors is an integer number (555823214793).

Almost surely, 2^{20055211040000} is an apocalyptic number.

20055211040000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20055211040000 is an abundant number, since it is smaller than the sum of its proper divisors (29968878291370).

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

20055211040000 is an frugal number, since it uses more digits than its factorization.

20055211040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125345105 (or 125345076 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 20055211040000 its reverse (4011255002), we get a palindrome (20059222295002).

The spelling of 20055211040000 in words is "twenty trillion, fifty-five billion, two hundred eleven million, forty thousand".