133044172636 has 48 divisors (see below), whose sum is σ = 237025152000. Its totient is φ = 65334600000.

The previous prime is 133044172631. The next prime is 133044172693. The reversal of 133044172636 is 636271440331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133044172631) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 66554365 + ... + 66556363.

It is an arithmetic number, because the mean of its divisors is an integer number (4938024000).

Almost surely, 2^133044172636 is an apocalyptic number.

It is an amenable number.

133044172636 is a deficient number, since it is larger than the sum of its proper divisors (103980979364).

133044172636 is a wasteful number, since it uses less digits than its factorization.

133044172636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346 (or 3344 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 133044172636 in words is "one hundred thirty-three billion, forty-four million, one hundred seventy-two thousand, six hundred thirty-six".