361908666641 has 2 divisors, whose sum is σ = 361908666642. Its totient is φ = 361908666640.

The previous prime is 361908666607. The next prime is 361908666667. The reversal of 361908666641 is 146666809163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353197244416 + 8711422225 = 594304^2 + 93335^2 .

It is a cyclic number.

It is not a de Polignac number, because 361908666641 - 2²² = 361904472337 is a prime.

It is not a weakly prime, because it can be changed into another prime (361908666601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180954333320 + 180954333321.

It is an arithmetic number, because the mean of its divisors is an integer number (180954333321).

Almost surely, 2^361908666641 is an apocalyptic number.

It is an amenable number.

361908666641 is a deficient number, since it is larger than the sum of its proper divisors (1).

361908666641 is an equidigital number, since it uses as much as digits as its factorization.

361908666641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 361908666641 in words is "three hundred sixty-one billion, nine hundred eight million, six hundred sixty-six thousand, six hundred forty-one".