165378755383 has 2 divisors, whose sum is σ = 165378755384. Its totient is φ = 165378755382.

The previous prime is 165378755371. The next prime is 165378755389. The reversal of 165378755383 is 383557873561.

It is a happy number.

165378755383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165378755383 - 2²¹ = 165376658231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165378755389) 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, 82689377691 + 82689377692.

It is an arithmetic number, because the mean of its divisors is an integer number (82689377692).

Almost surely, 2^165378755383 is an apocalyptic number.

165378755383 is a deficient number, since it is larger than the sum of its proper divisors (1).

165378755383 is an equidigital number, since it uses as much as digits as its factorization.

165378755383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504000, while the sum is 61.

The spelling of 165378755383 in words is "one hundred sixty-five billion, three hundred seventy-eight million, seven hundred fifty-five thousand, three hundred eighty-three".