33640464017 has 2 divisors, whose sum is σ = 33640464018. Its totient is φ = 33640464016.

The previous prime is 33640463999. The next prime is 33640464023. The reversal of 33640464017 is 71046404633.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33565537681 + 74926336 = 183209^2 + 8656^2 .

It is a cyclic number.

It is not a de Polignac number, because 33640464017 - 2²² = 33636269713 is a prime.

It is a super-2 number, since 2×33640464017² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33640464817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16820232008 + 16820232009.

It is an arithmetic number, because the mean of its divisors is an integer number (16820232009).

Almost surely, 2^33640464017 is an apocalyptic number.

It is an amenable number.

33640464017 is a deficient number, since it is larger than the sum of its proper divisors (1).

33640464017 is an equidigital number, since it uses as much as digits as its factorization.

33640464017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 38.

The spelling of 33640464017 in words is "thirty-three billion, six hundred forty million, four hundred sixty-four thousand, seventeen".