165346984501 has 2 divisors, whose sum is σ = 165346984502. Its totient is φ = 165346984500.

The previous prime is 165346984477. The next prime is 165346984507. The reversal of 165346984501 is 105489643561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119100912100 + 46246072401 = 345110^2 + 215049^2 .

It is a cyclic number.

It is not a de Polignac number, because 165346984501 - 2¹⁷ = 165346853429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165346984507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82673492250 + 82673492251.

It is an arithmetic number, because the mean of its divisors is an integer number (82673492251).

Almost surely, 2^165346984501 is an apocalyptic number.

It is an amenable number.

165346984501 is a deficient number, since it is larger than the sum of its proper divisors (1).

165346984501 is an equidigital number, since it uses as much as digits as its factorization.

165346984501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 165346984501 in words is "one hundred sixty-five billion, three hundred forty-six million, nine hundred eighty-four thousand, five hundred one".