604165752961 has 9 divisors (see below), whose sum is σ = 611972425281. Its totient is φ = 596457457284.

The previous prime is 604165752923. The next prime is 604165752977. The reversal of 604165752961 is 169257561406.

It is a happy number.

The square root of 604165752961 is 777281.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-604165752961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 604165752899 and 604165752908.

It is not an unprimeable number, because it can be changed into a prime (604165752361) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 61400280 + ... + 61410118.

Almost surely, 2^604165752961 is an apocalyptic number.

604165752961 is the 777281-st square number.

604165752961 is the 388641-st centered octagonal number.

It is an amenable number.

604165752961 is a deficient number, since it is larger than the sum of its proper divisors (7806672320).

604165752961 is an frugal number, since it uses more digits than its factorization.

604165752961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19836 (or 9918 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 604165752961 in words is "six hundred four billion, one hundred sixty-five million, seven hundred fifty-two thousand, nine hundred sixty-one".