133508220455020 has 24 divisors (see below), whose sum is σ = 280735682518368. Its totient is φ = 53333113027200.

The previous prime is 133508220455017. The next prime is 133508220455023. The reversal of 133508220455020 is 20554022805331.

It is an interprime number because it is at equal distance from previous prime (133508220455017) and next prime (133508220455023).

It is not an unprimeable number, because it can be changed into a prime (133508220455023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4385931576 + ... + 4385962015.

It is an arithmetic number, because the mean of its divisors is an integer number (11697320104932).

Almost surely, 2^{133508220455020} is an apocalyptic number.

133508220455020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133508220455020 is an abundant number, since it is smaller than the sum of its proper divisors (147227462063348).

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

133508220455020 is a wasteful number, since it uses less digits than its factorization.

133508220455020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8771894361 (or 8771894359 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 133508220455020 in words is "one hundred thirty-three trillion, five hundred eight billion, two hundred twenty million, four hundred fifty-five thousand, twenty".