33640263331211 has 8 divisors (see below), whose sum is σ = 36447453568944. Its totient is φ = 30925112117760.

The previous prime is 33640263331091. The next prime is 33640263331237. The reversal of 33640263331211 is 11213336204633.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33640263331211 is a prime.

It is a super-2 number, since 2×33640263331211² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33640263330211) 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, 23009755310 + ... + 23009756771.

It is an arithmetic number, because the mean of its divisors is an integer number (4555931696118).

Almost surely, 2^{33640263331211} is an apocalyptic number.

33640263331211 is a deficient number, since it is larger than the sum of its proper divisors (2807190237733).

33640263331211 is a wasteful number, since it uses less digits than its factorization.

33640263331211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46019512141.

The product of its (nonzero) digits is 139968, while the sum is 38.

Adding to 33640263331211 its reverse (11213336204633), we get a palindrome (44853599535844).

The spelling of 33640263331211 in words is "thirty-three trillion, six hundred forty billion, two hundred sixty-three million, three hundred thirty-one thousand, two hundred eleven".