608604377161 has 9 divisors (see below), whose sum is σ = 668971268679. Its totient is φ = 553268905200.

The previous prime is 608604377141. The next prime is 608604377167. The reversal of 608604377161 is 161773406806.

The square root of 608604377161 is 780131.

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., 567281618761 + 41322758400 = 753181^2 + 203280^2 .

It is not a de Polignac number, because 608604377161 - 2¹⁹ = 608603852873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (608604377167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8545981 + ... + 8616901.

Almost surely, 2^608604377161 is an apocalyptic number.

608604377161 is the 780131-st square number.

608604377161 is the 390066-th centered octagonal number.

It is an amenable number.

608604377161 is a deficient number, since it is larger than the sum of its proper divisors (60366891518).

608604377161 is an frugal number, since it uses more digits than its factorization.

608604377161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141864 (or 70932 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

Multiplying 608604377161 by its sum of digits (49), we get a square (29821614480889 = 5460917²).

The spelling of 608604377161 in words is "six hundred eight billion, six hundred four million, three hundred seventy-seven thousand, one hundred sixty-one".