366617035128961 has 4 divisors (see below), whose sum is σ = 367655610299652. Its totient is φ = 365578459958272.

The previous prime is 366617035128919. The next prime is 366617035129013. The reversal of 366617035128961 is 169821530716663.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183683809000000 + 182933226128961 = 13553000^2 + 13525281^2 .

It is a cyclic number.

It is not a de Polignac number, because 366617035128961 - 2³⁵ = 366582675390593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 366617035128893 and 366617035128902.

It is not an unprimeable number, because it can be changed into a prime (366617035128161) 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 in 3 ways as a sum of consecutive naturals, for example, 519287584816 + ... + 519287585521.

It is an arithmetic number, because the mean of its divisors is an integer number (91913902574913).

Almost surely, 2^{366617035128961} is an apocalyptic number.

It is an amenable number.

366617035128961 is a deficient number, since it is larger than the sum of its proper divisors (1038575170691).

366617035128961 is a wasteful number, since it uses less digits than its factorization.

366617035128961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038575170690.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 366617035128961 in words is "three hundred sixty-six trillion, six hundred seventeen billion, thirty-five million, one hundred twenty-eight thousand, nine hundred sixty-one".