165047730623 has 2 divisors, whose sum is σ = 165047730624. Its totient is φ = 165047730622.

The previous prime is 165047730599. The next prime is 165047730713. The reversal of 165047730623 is 326037740561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165047730623 - 2¹² = 165047726527 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165047790623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82523865311 + 82523865312.

It is an arithmetic number, because the mean of its divisors is an integer number (82523865312).

Almost surely, 2^165047730623 is an apocalyptic number.

165047730623 is a deficient number, since it is larger than the sum of its proper divisors (1).

165047730623 is an equidigital number, since it uses as much as digits as its factorization.

165047730623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 165047730623 in words is "one hundred sixty-five billion, forty-seven million, seven hundred thirty thousand, six hundred twenty-three".