133444666677 has 32 divisors (see below), whose sum is σ = 209952497664. Its totient is φ = 73777147200.

The previous prime is 133444666651. The next prime is 133444666679. The reversal of 133444666677 is 776666444331.

It is not a de Polignac number, because 133444666677 - 2⁶ = 133444666613 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133444666679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3094927 + ... + 3137747.

It is an arithmetic number, because the mean of its divisors is an integer number (6561015552).

Almost surely, 2^133444666677 is an apocalyptic number.

It is an amenable number.

133444666677 is a deficient number, since it is larger than the sum of its proper divisors (76507830987).

133444666677 is a wasteful number, since it uses less digits than its factorization.

133444666677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47649.

The product of its digits is 36578304, while the sum is 57.

The spelling of 133444666677 in words is "one hundred thirty-three billion, four hundred forty-four million, six hundred sixty-six thousand, six hundred seventy-seven".