165078582337 has 2 divisors, whose sum is σ = 165078582338. Its totient is φ = 165078582336.

The previous prime is 165078582311. The next prime is 165078582373. The reversal of 165078582337 is 733285870561.

Together with next prime (165078582373) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163661511601 + 1417070736 = 404551^2 + 37644^2 .

It is a cyclic number.

It is not a de Polignac number, because 165078582337 - 2²⁷ = 164944364609 is a prime.

It is not a weakly prime, because it can be changed into another prime (165078582937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82539291168 + 82539291169.

It is an arithmetic number, because the mean of its divisors is an integer number (82539291169).

Almost surely, 2^165078582337 is an apocalyptic number.

It is an amenable number.

165078582337 is a deficient number, since it is larger than the sum of its proper divisors (1).

165078582337 is an equidigital number, since it uses as much as digits as its factorization.

165078582337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 165078582337 in words is "one hundred sixty-five billion, seventy-eight million, five hundred eighty-two thousand, three hundred thirty-seven".