133432321649 has 64 divisors (see below), whose sum is σ = 168417792000. Its totient is φ = 104113382400.

The previous prime is 133432321637. The next prime is 133432321651. The reversal of 133432321649 is 946123234331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133432321649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133432321619) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10179902 + ... + 10193000.

It is an arithmetic number, because the mean of its divisors is an integer number (2631528000).

Almost surely, 2^133432321649 is an apocalyptic number.

133432321649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

133432321649 is a deficient number, since it is larger than the sum of its proper divisors (34985470351).

133432321649 is a wasteful number, since it uses less digits than its factorization.

133432321649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13254.

The product of its digits is 279936, while the sum is 41.

The spelling of 133432321649 in words is "one hundred thirty-three billion, four hundred thirty-two million, three hundred twenty-one thousand, six hundred forty-nine".