133126054334661 has 16 divisors (see below), whose sum is σ = 184698371660544. Its totient is φ = 85223477037504.

The previous prime is 133126054334657. The next prime is 133126054334681. The reversal of 133126054334661 is 166433450621331.

It is a happy number.

It is not a de Polignac number, because 133126054334661 - 2² = 133126054334657 is a prime.

It is a super-2 number, since 2×133126054334661² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133126054334661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133126054334681) 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, 8907128506 + ... + 8907143451.

It is an arithmetic number, because the mean of its divisors is an integer number (11543648228784).

Almost surely, 2^{133126054334661} is an apocalyptic number.

It is an amenable number.

133126054334661 is a deficient number, since it is larger than the sum of its proper divisors (51572317325883).

133126054334661 is a wasteful number, since it uses less digits than its factorization.

133126054334661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17814272060.

The product of its (nonzero) digits is 2799360, while the sum is 48.

The spelling of 133126054334661 in words is "one hundred thirty-three trillion, one hundred twenty-six billion, fifty-four million, three hundred thirty-four thousand, six hundred sixty-one".