20018576552000 has 112 divisors (see below), whose sum is σ = 53389543941552. Its totient is φ = 7391474380800.

The previous prime is 20018576551951. The next prime is 20018576552011. The reversal of 20018576552000 is 25567581002.

It can be written as a sum of positive squares in 8 ways, for example, as 11894662890496 + 8123913661504 = 3448864^2 + 2850248^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96139157 + ... + 96347156.

It is an arithmetic number, because the mean of its divisors is an integer number (476692356621).

Almost surely, 2^{20018576552000} is an apocalyptic number.

20018576552000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20018576552000 is an abundant number, since it is smaller than the sum of its proper divisors (33370967389552).

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

20018576552000 is a wasteful number, since it uses less digits than its factorization.

20018576552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192486353 (or 192486333 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 20018576552000 in words is "twenty trillion, eighteen billion, five hundred seventy-six million, five hundred fifty-two thousand".