133456242651021 has 48 divisors (see below), whose sum is σ = 195674736216960. Its totient is φ = 87632711147520.

The previous prime is 133456242650999. The next prime is 133456242651023. The reversal of 133456242651021 is 120156242654331.

133456242651021 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 5 + 624 + 2 + 6 + 5 + 10 + 2 + 1 = 666.

It is not a de Polignac number, because 133456242651021 - 2⁷ = 133456242650893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133456242651023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3004598605 + ... + 3004643021.

It is an arithmetic number, because the mean of its divisors is an integer number (4076557004520).

Almost surely, 2^{133456242651021} is an apocalyptic number.

It is an amenable number.

133456242651021 is a deficient number, since it is larger than the sum of its proper divisors (62218493565939).

133456242651021 is a wasteful number, since it uses less digits than its factorization.

133456242651021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48946 (or 48943 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 133456242651021 in words is "one hundred thirty-three trillion, four hundred fifty-six billion, two hundred forty-two million, six hundred fifty-one thousand, twenty-one".