3165322625081 has 2 divisors, whose sum is σ = 3165322625082. Its totient is φ = 3165322625080.

The previous prime is 3165322625077. The next prime is 3165322625089. The reversal of 3165322625081 is 1805262235613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2973758842681 + 191563782400 = 1724459^2 + 437680^2 .

It is an emirp because it is prime and its reverse (1805262235613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3165322625081 - 2² = 3165322625077 is a prime.

It is a super-2 number, since 2×3165322625081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3165322625089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582661312540 + 1582661312541.

It is an arithmetic number, because the mean of its divisors is an integer number (1582661312541).

Almost surely, 2^{3165322625081} is an apocalyptic number.

It is an amenable number.

3165322625081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3165322625081 is an equidigital number, since it uses as much as digits as its factorization.

3165322625081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 3165322625081 in words is "three trillion, one hundred sixty-five billion, three hundred twenty-two million, six hundred twenty-five thousand, eighty-one".