33456621137 has 2 divisors, whose sum is σ = 33456621138. Its totient is φ = 33456621136.

The previous prime is 33456621127. The next prime is 33456621193. The reversal of 33456621137 is 73112665433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25286088256 + 8170532881 = 159016^2 + 90391^2 .

It is a cyclic number.

It is not a de Polignac number, because 33456621137 - 2⁸ = 33456620881 is a prime.

It is a super-2 number, since 2×33456621137² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33456621094 and 33456621103.

It is not a weakly prime, because it can be changed into another prime (33456621127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16728310568 + 16728310569.

It is an arithmetic number, because the mean of its divisors is an integer number (16728310569).

Almost surely, 2^33456621137 is an apocalyptic number.

It is an amenable number.

33456621137 is a deficient number, since it is larger than the sum of its proper divisors (1).

33456621137 is an equidigital number, since it uses as much as digits as its factorization.

33456621137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 41.

The spelling of 33456621137 in words is "thirty-three billion, four hundred fifty-six million, six hundred twenty-one thousand, one hundred thirty-seven".