133640437340 has 24 divisors (see below), whose sum is σ = 280775967360. Its totient is φ = 53431213248.

The previous prime is 133640437277. The next prime is 133640437369. The reversal of 133640437340 is 43734046331.

It is a junction number, because it is equal to n+sod(n) for n = 133640437294 and 133640437303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516175 + ... + 1601894.

It is an arithmetic number, because the mean of its divisors is an integer number (11698998640).

Almost surely, 2^133640437340 is an apocalyptic number.

133640437340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133640437340 is an abundant number, since it is smaller than the sum of its proper divisors (147135530020).

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

133640437340 is a wasteful number, since it uses less digits than its factorization.

133640437340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120221 (or 3120219 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 38.

The spelling of 133640437340 in words is "one hundred thirty-three billion, six hundred forty million, four hundred thirty-seven thousand, three hundred forty".