133805776667 has 4 divisors (see below), whose sum is σ = 133853963016. Its totient is φ = 133757590320.

The previous prime is 133805776627. The next prime is 133805776673. The reversal of 133805776667 is 766677508331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133805776667 - 2²⁰ = 133804728091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133805776627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24089009 + ... + 24094562.

It is an arithmetic number, because the mean of its divisors is an integer number (33463490754).

Almost surely, 2^133805776667 is an apocalyptic number.

133805776667 is a deficient number, since it is larger than the sum of its proper divisors (48186349).

133805776667 is an equidigital number, since it uses as much as digits as its factorization.

133805776667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48186348.

The product of its (nonzero) digits is 26671680, while the sum is 59.

The spelling of 133805776667 in words is "one hundred thirty-three billion, eight hundred five million, seven hundred seventy-six thousand, six hundred sixty-seven".