33640065241 has 8 divisors (see below), whose sum is σ = 33738982344. Its totient is φ = 33541294080.

The previous prime is 33640065233. The next prime is 33640065271. The reversal of 33640065241 is 14256004633.

It can be written as a sum of positive squares in 4 ways, for example, as 29873665600 + 3766399641 = 172840^2 + 61371^2 .

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 33640065241 - 2³ = 33640065233 is a prime.

It is a super-2 number, since 2×33640065241² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33640065197 and 33640065206.

It is not an unprimeable number, because it can be changed into a prime (33640065211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434055 + ... + 505651.

It is an arithmetic number, because the mean of its divisors is an integer number (4217372793).

Almost surely, 2^33640065241 is an apocalyptic number.

It is an amenable number.

33640065241 is a deficient number, since it is larger than the sum of its proper divisors (98917103).

33640065241 is an equidigital number, since it uses as much as digits as its factorization.

33640065241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72971.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 33640065241 its reverse (14256004633), we get a palindrome (47896069874).

The spelling of 33640065241 in words is "thirty-three billion, six hundred forty million, sixty-five thousand, two hundred forty-one".