133603313440 has 48 divisors (see below), whose sum is σ = 315898499448. Its totient is φ = 53397190656.

The previous prime is 133603313423. The next prime is 133603313509. The reversal of 133603313440 is 44313306331.

It can be written as a sum of positive squares in 4 ways, for example, as 110801105424 + 22802208016 = 332868^2 + 151004^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150117 + ... + 538276.

Almost surely, 2^133603313440 is an apocalyptic number.

133603313440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133603313440 is an abundant number, since it is smaller than the sum of its proper divisors (182295186008).

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

133603313440 is a wasteful number, since it uses less digits than its factorization.

133603313440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689621 (or 689613 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 133603313440 its reverse (44313306331), we get a palindrome (177916619771).

The spelling of 133603313440 in words is "one hundred thirty-three billion, six hundred three million, three hundred thirteen thousand, four hundred forty".