165476361901 has 2 divisors, whose sum is σ = 165476361902. Its totient is φ = 165476361900.

The previous prime is 165476361889. The next prime is 165476362133. The reversal of 165476361901 is 109163674561.

It is a happy number.

165476361901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103600296900 + 61876065001 = 321870^2 + 248749^2 .

It is a cyclic number.

It is not a de Polignac number, because 165476361901 - 2⁷ = 165476361773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165476361601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82738180950 + 82738180951.

It is an arithmetic number, because the mean of its divisors is an integer number (82738180951).

Almost surely, 2^165476361901 is an apocalyptic number.

It is an amenable number.

165476361901 is a deficient number, since it is larger than the sum of its proper divisors (1).

165476361901 is an equidigital number, since it uses as much as digits as its factorization.

165476361901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 165476361901 in words is "one hundred sixty-five billion, four hundred seventy-six million, three hundred sixty-one thousand, nine hundred one".