133333666671 has 32 divisors (see below), whose sum is σ = 189370545408. Its totient is φ = 83156810240.

The previous prime is 133333666667. The next prime is 133333666679. The reversal of 133333666671 is 176666333331.

It is a cyclic number.

It is not a de Polignac number, because 133333666671 - 2² = 133333666667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133333666671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333666679) 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, 11678956 + ... + 11690366.

It is an arithmetic number, because the mean of its divisors is an integer number (5917829544).

Almost surely, 2^133333666671 is an apocalyptic number.

133333666671 is a deficient number, since it is larger than the sum of its proper divisors (56036878737).

133333666671 is a wasteful number, since it uses less digits than its factorization.

133333666671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791.

The product of its digits is 2204496, while the sum is 48.

The spelling of 133333666671 in words is "one hundred thirty-three billion, three hundred thirty-three million, six hundred sixty-six thousand, six hundred seventy-one".