133036636681 has 8 divisors (see below), whose sum is σ = 145408586624. Its totient is φ = 120970167120.

The previous prime is 133036636673. The next prime is 133036636703. The reversal of 133036636681 is 186636630331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133036636681 - 2³ = 133036636673 is a prime.

It is a super-2 number, since 2×133036636681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133036636631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76369185 + ... + 76370926.

It is an arithmetic number, because the mean of its divisors is an integer number (18176073328).

Almost surely, 2^133036636681 is an apocalyptic number.

It is an amenable number.

133036636681 is a deficient number, since it is larger than the sum of its proper divisors (12371949943).

133036636681 is a wasteful number, since it uses less digits than its factorization.

133036636681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152740191.

The product of its (nonzero) digits is 839808, while the sum is 46.

The spelling of 133036636681 in words is "one hundred thirty-three billion, thirty-six million, six hundred thirty-six thousand, six hundred eighty-one".