32640242203669 has 2 divisors, whose sum is σ = 32640242203670. Its totient is φ = 32640242203668.

The previous prime is 32640242203643. The next prime is 32640242203759. The reversal of 32640242203669 is 96630224204623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32192721342769 + 447520860900 = 5673863^2 + 668970^2 .

It is an emirp because it is prime and its reverse (96630224204623) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32640242203669 - 2¹⁷ = 32640242072597 is a prime.

It is a super-2 number, since 2×32640242203669² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32640242203969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16320121101834 + 16320121101835.

It is an arithmetic number, because the mean of its divisors is an integer number (16320121101835).

Almost surely, 2^{32640242203669} is an apocalyptic number.

It is an amenable number.

32640242203669 is a deficient number, since it is larger than the sum of its proper divisors (1).

32640242203669 is an equidigital number, since it uses as much as digits as its factorization.

32640242203669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 49.

The spelling of 32640242203669 in words is "thirty-two trillion, six hundred forty billion, two hundred forty-two million, two hundred three thousand, six hundred sixty-nine".