133454504220 has 24 divisors (see below), whose sum is σ = 373672611984. Its totient is φ = 35587867776.

The previous prime is 133454504213. The next prime is 133454504221. The reversal of 133454504220 is 22405454331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133454504221) 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, 1112120809 + ... + 1112120928.

It is an arithmetic number, because the mean of its divisors is an integer number (15569692166).

Almost surely, 2^133454504220 is an apocalyptic number.

133454504220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133454504220 is an abundant number, since it is smaller than the sum of its proper divisors (240218107764).

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

133454504220 is a wasteful number, since it uses less digits than its factorization.

133454504220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224241749 (or 2224241747 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 133454504220 its reverse (22405454331), we get a palindrome (155859958551).

The spelling of 133454504220 in words is "one hundred thirty-three billion, four hundred fifty-four million, five hundred four thousand, two hundred twenty".