608538164561 has 4 divisors (see below), whose sum is σ = 618852370800. Its totient is φ = 598223958324.

The previous prime is 608538164543. The next prime is 608538164579. The reversal of 608538164561 is 165461835806.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (608538164543) and next prime (608538164579).

It is a cyclic number.

It is not a de Polignac number, because 608538164561 - 2⁶ = 608538164497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (608538164161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5157103031 + ... + 5157103148.

It is an arithmetic number, because the mean of its divisors is an integer number (154713092700).

Almost surely, 2^608538164561 is an apocalyptic number.

It is an amenable number.

608538164561 is a deficient number, since it is larger than the sum of its proper divisors (10314206239).

608538164561 is a wasteful number, since it uses less digits than its factorization.

608538164561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10314206238.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 608538164561 in words is "six hundred eight billion, five hundred thirty-eight million, one hundred sixty-four thousand, five hundred sixty-one".