133598491608 has 32 divisors (see below), whose sum is σ = 334231027200. Its totient is φ = 44501524128.

The previous prime is 133598491603. The next prime is 133598491639. The reversal of 133598491608 is 806194895331.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133598491603) 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, 1921788 + ... + 1990091.

It is an arithmetic number, because the mean of its divisors is an integer number (10444719600).

Almost surely, 2^133598491608 is an apocalyptic number.

It is an amenable number.

133598491608 is an abundant number, since it is smaller than the sum of its proper divisors (200632535592).

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

133598491608 is a wasteful number, since it uses less digits than its factorization.

133598491608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913311 (or 3913307 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 57.

The spelling of 133598491608 in words is "one hundred thirty-three billion, five hundred ninety-eight million, four hundred ninety-one thousand, six hundred eight".