133686222686331 has 32 divisors (see below), whose sum is σ = 204437425082880. Its totient is φ = 76120233974784.

The previous prime is 133686222686327. The next prime is 133686222686347.

133686222686331 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 133686222686331 - 2² = 133686222686327 is a prime.

It is a super-2 number, since 2×133686222686331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133686222686231) 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, 249058585 + ... + 249594773.

It is an arithmetic number, because the mean of its divisors is an integer number (6388669533840).

Almost surely, 2^{133686222686331} is an apocalyptic number.

133686222686331 is a deficient number, since it is larger than the sum of its proper divisors (70751202396549).

133686222686331 is a wasteful number, since it uses less digits than its factorization.

133686222686331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578435.

The product of its digits is 53747712, while the sum is 60.

The spelling of 133686222686331 in words is "one hundred thirty-three trillion, six hundred eighty-six billion, two hundred twenty-two million, six hundred eighty-six thousand, three hundred thirty-one".