606519751961 has 4 divisors (see below), whose sum is σ = 608678185524. Its totient is φ = 604361318400.

The previous prime is 606519751913. The next prime is 606519751987. The reversal of 606519751961 is 169157915606.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 169157915606 = 2 ⋅84578957803.

It can be written as a sum of positive squares in 2 ways, for example, as 291147655561 + 315372096400 = 539581^2 + 561580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606519751961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 606519751897 and 606519751906.

It is not an unprimeable number, because it can be changed into a prime (606519751991) 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, 1079216360 + ... + 1079216921.

It is an arithmetic number, because the mean of its divisors is an integer number (152169546381).

Almost surely, 2^606519751961 is an apocalyptic number.

It is an amenable number.

606519751961 is a deficient number, since it is larger than the sum of its proper divisors (2158433563).

606519751961 is a wasteful number, since it uses less digits than its factorization.

606519751961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158433562.

The product of its (nonzero) digits is 3061800, while the sum is 56.

The spelling of 606519751961 in words is "six hundred six billion, five hundred nineteen million, seven hundred fifty-one thousand, nine hundred sixty-one".