133566214056020 has 24 divisors (see below), whose sum is σ = 285781295737224. Its totient is φ = 52418438723456.

The previous prime is 133566214055903. The next prime is 133566214056071. The reversal of 133566214056020 is 20650412665331.

It can be written as a sum of positive squares in 4 ways, for example, as 70410324259396 + 63155889796624 = 8391086^2 + 7947068^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63002930099 + ... + 63002932218.

It is an arithmetic number, because the mean of its divisors is an integer number (11907553989051).

Almost surely, 2^{133566214056020} is an apocalyptic number.

133566214056020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133566214056020 is an abundant number, since it is smaller than the sum of its proper divisors (152215081681204).

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

133566214056020 is a wasteful number, since it uses less digits than its factorization.

133566214056020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126005862379 (or 126005862377 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 133566214056020 in words is "one hundred thirty-three trillion, five hundred sixty-six billion, two hundred fourteen million, fifty-six thousand, twenty".