133237819623908 has 6 divisors (see below), whose sum is σ = 233166184341846. Its totient is φ = 66618909811952.

The previous prime is 133237819623869. The next prime is 133237819623973. The reversal of 133237819623908 is 809326918732331.

It can be written as a sum of positive squares in only one way, i.e., 120070268844964 + 13167550778944 = 10957658^2 + 3628712^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16654727452985 + ... + 16654727452992.

It is an arithmetic number, because the mean of its divisors is an integer number (38861030723641).

Almost surely, 2^{133237819623908} is an apocalyptic number.

It is an amenable number.

133237819623908 is a deficient number, since it is larger than the sum of its proper divisors (99928364717938).

133237819623908 is a wasteful number, since it uses less digits than its factorization.

133237819623908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33309454905981 (or 33309454905979 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 65.

The spelling of 133237819623908 in words is "one hundred thirty-three trillion, two hundred thirty-seven billion, eight hundred nineteen million, six hundred twenty-three thousand, nine hundred eight".