133631620445403 has 12 divisors (see below), whose sum is σ = 203182580794440. Its totient is φ = 84398918175936.

The previous prime is 133631620445399. The next prime is 133631620445507. The reversal of 133631620445403 is 304544026136331.

133631620445403 is a `hidden beast` number, since 1 + 3 + 3 + 6 + 3 + 1 + 62 + 0 + 44 + 540 + 3 = 666.

It is not a de Polignac number, because 133631620445403 - 2² = 133631620445399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133631620445903) 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 11 ways as a sum of consecutive naturals, for example, 390735732126 + ... + 390735732467.

It is an arithmetic number, because the mean of its divisors is an integer number (16931881732870).

Almost surely, 2^{133631620445403} is an apocalyptic number.

133631620445403 is a deficient number, since it is larger than the sum of its proper divisors (69550960349037).

133631620445403 is a wasteful number, since it uses less digits than its factorization.

133631620445403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781471464618 (or 781471464615 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 45.

The spelling of 133631620445403 in words is "one hundred thirty-three trillion, six hundred thirty-one billion, six hundred twenty million, four hundred forty-five thousand, four hundred three".