64215413033 has 4 divisors (see below), whose sum is σ = 64277578068. Its totient is φ = 64153248000.

The previous prime is 64215412997. The next prime is 64215413099. The reversal of 64215413033 is 33031451246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43751252224 + 20464160809 = 209168^2 + 143053^2 .

It is a cyclic number.

It is not a de Polignac number, because 64215413033 - 2⁸ = 64215412777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64215463033) 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 3 ways as a sum of consecutive naturals, for example, 31080968 + ... + 31083033.

It is an arithmetic number, because the mean of its divisors is an integer number (16069394517).

Almost surely, 2^64215413033 is an apocalyptic number.

It is an amenable number.

64215413033 is a deficient number, since it is larger than the sum of its proper divisors (62165035).

64215413033 is a wasteful number, since it uses less digits than its factorization.

64215413033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62165034.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 64215413033 its reverse (33031451246), we get a palindrome (97246864279).

The spelling of 64215413033 in words is "sixty-four billion, two hundred fifteen million, four hundred thirteen thousand, thirty-three".