133611506225601 has 16 divisors (see below), whose sum is σ = 178180264982208. Its totient is φ = 89058543897600.

The previous prime is 133611506225531. The next prime is 133611506225623. The reversal of 133611506225601 is 106522605116331.

It is a happy number.

It is not a de Polignac number, because 133611506225601 - 2³⁴ = 133594326356417 is a prime.

It is a super-2 number, since 2×133611506225601² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133611506225641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402374121 + ... + 402706041.

It is an arithmetic number, because the mean of its divisors is an integer number (11136266561388).

Almost surely, 2^{133611506225601} is an apocalyptic number.

It is an amenable number.

133611506225601 is a deficient number, since it is larger than the sum of its proper divisors (44568758756607).

133611506225601 is a wasteful number, since it uses less digits than its factorization.

133611506225601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355312.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 133611506225601 in words is "one hundred thirty-three trillion, six hundred eleven billion, five hundred six million, two hundred twenty-five thousand, six hundred one".