20165362601 has 2 divisors, whose sum is σ = 20165362602. Its totient is φ = 20165362600.

The previous prime is 20165362597. The next prime is 20165362619. The reversal of 20165362601 is 10626356102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15127770025 + 5037592576 = 122995^2 + 70976^2 .

It is a cyclic number.

It is not a de Polignac number, because 20165362601 - 2² = 20165362597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20165362621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10082681300 + 10082681301.

It is an arithmetic number, because the mean of its divisors is an integer number (10082681301).

Almost surely, 2^20165362601 is an apocalyptic number.

It is an amenable number.

20165362601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20165362601 is an equidigital number, since it uses as much as digits as its factorization.

20165362601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 20165362601 in words is "twenty billion, one hundred sixty-five million, three hundred sixty-two thousand, six hundred one".