51167110061 has 8 divisors (see below), whose sum is σ = 51747656760. Its totient is φ = 50586688768.

The previous prime is 51167110039. The next prime is 51167110073. The reversal of 51167110061 is 16001176115.

It can be written as a sum of positive squares in 4 ways, for example, as 23652594436 + 27514515625 = 153794^2 + 165875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51167110061 - 2⁶ = 51167109997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51167110021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 969035 + ... + 1020471.

It is an arithmetic number, because the mean of its divisors is an integer number (6468457095).

Almost surely, 2^51167110061 is an apocalyptic number.

It is an amenable number.

51167110061 is a deficient number, since it is larger than the sum of its proper divisors (580546699).

51167110061 is a wasteful number, since it uses less digits than its factorization.

51167110061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62703.

The product of its (nonzero) digits is 1260, while the sum is 29.

Adding to 51167110061 its reverse (16001176115), we get a palindrome (67168286176).

The spelling of 51167110061 in words is "fifty-one billion, one hundred sixty-seven million, one hundred ten thousand, sixty-one".