3236641605997 has 2 divisors, whose sum is σ = 3236641605998. Its totient is φ = 3236641605996.

The previous prime is 3236641605943. The next prime is 3236641606021. The reversal of 3236641605997 is 7995061466323.

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., 2132084747556 + 1104556858441 = 1460166^2 + 1050979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3236641605997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3236641605497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1618320802998 + 1618320802999.

It is an arithmetic number, because the mean of its divisors is an integer number (1618320802999).

Almost surely, 2^{3236641605997} is an apocalyptic number.

It is an amenable number.

3236641605997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3236641605997 is an equidigital number, since it uses as much as digits as its factorization.

3236641605997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44089920, while the sum is 61.

The spelling of 3236641605997 in words is "three trillion, two hundred thirty-six billion, six hundred forty-one million, six hundred five thousand, nine hundred ninety-seven".