959545955561 has 2 divisors, whose sum is σ = 959545955562. Its totient is φ = 959545955560.

The previous prime is 959545955539. The next prime is 959545955567. The reversal of 959545955561 is 165559545959.

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., 851818243600 + 107727711961 = 922940^2 + 328219^2 .

It is an emirp because it is prime and its reverse (165559545959) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 959545955561 - 2⁶ = 959545955497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 959545955491 and 959545955500.

It is not a weakly prime, because it can be changed into another prime (959545955567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479772977780 + 479772977781.

It is an arithmetic number, because the mean of its divisors is an integer number (479772977781).

Almost surely, 2^959545955561 is an apocalyptic number.

It is an amenable number.

959545955561 is a deficient number, since it is larger than the sum of its proper divisors (1).

959545955561 is an equidigital number, since it uses as much as digits as its factorization.

959545955561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 273375000, while the sum is 68.

The spelling of 959545955561 in words is "nine hundred fifty-nine billion, five hundred forty-five million, nine hundred fifty-five thousand, five hundred sixty-one".