133355449998 has 48 divisors (see below), whose sum is σ = 299214616896. Its totient is φ = 42898115520.

The previous prime is 133355449973. The next prime is 133355449999. The reversal of 133355449998 is 899944553331.

133355449998 is a `hidden beast` number, since 1 + 3 + 3 + 3 + 5 + 54 + 499 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133355449999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1087590 + ... + 1203977.

It is an arithmetic number, because the mean of its divisors is an integer number (6233637852).

Almost surely, 2^133355449998 is an apocalyptic number.

133355449998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

133355449998 is an abundant number, since it is smaller than the sum of its proper divisors (165859166898).

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

133355449998 is a wasteful number, since it uses less digits than its factorization.

133355449998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291689 (or 2291686 counting only the distinct ones).

The product of its digits is 62985600, while the sum is 63.

The spelling of 133355449998 in words is "one hundred thirty-three billion, three hundred fifty-five million, four hundred forty-nine thousand, nine hundred ninety-eight".