133021406636 has 6 divisors (see below), whose sum is σ = 232787461620. Its totient is φ = 66510703316.

The previous prime is 133021406621. The next prime is 133021406641. The reversal of 133021406636 is 636604120331.

It is a junction number, because it is equal to n+sod(n) for n = 133021406596 and 133021406605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16627675826 + ... + 16627675833.

It is an arithmetic number, because the mean of its divisors is an integer number (38797910270).

Almost surely, 2^133021406636 is an apocalyptic number.

It is an amenable number.

133021406636 is a deficient number, since it is larger than the sum of its proper divisors (99766054984).

133021406636 is a wasteful number, since it uses less digits than its factorization.

133021406636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33255351663 (or 33255351661 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

Adding to 133021406636 its reverse (636604120331), we get a palindrome (769625526967).

The spelling of 133021406636 in words is "one hundred thirty-three billion, twenty-one million, four hundred six thousand, six hundred thirty-six".