7603665601 has 9 divisors (see below), whose sum is σ = 8845790499. Its totient is φ = 6516904464.

The previous prime is 7603665577. The next prime is 7603665623. The reversal of 7603665601 is 1065663067.

The square root of 7603665601 is 87199.

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

It can be written as a sum of positive squares in only one way, i.e., 6262348225 + 1341317376 = 79135^2 + 36624^2 .

It is not a de Polignac number, because 7603665601 - 2⁵ = 7603665569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7603665001) 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 in 8 ways as a sum of consecutive naturals, for example, 604165 + ... + 616621.

It is an arithmetic number, because the mean of its divisors is an integer number (982865611).

Almost surely, 2^7603665601 is an apocalyptic number.

7603665601 is the 87199-th square number.

7603665601 is the 43600-th centered octagonal number.

It is an amenable number.

7603665601 is a deficient number, since it is larger than the sum of its proper divisors (1242124898).

7603665601 is an frugal number, since it uses more digits than its factorization.

7603665601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24928 (or 12464 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The cubic root of 7603665601 is about 1966.4111871747.

The spelling of 7603665601 in words is "seven billion, six hundred three million, six hundred sixty-five thousand, six hundred one".