165470409601493 has 2 divisors, whose sum is σ = 165470409601494. Its totient is φ = 165470409601492.

The previous prime is 165470409601447. The next prime is 165470409601583. The reversal of 165470409601493 is 394106904074561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164179170550564 + 1291239050929 = 12813242^2 + 1136327^2 .

It is a cyclic number.

It is not a de Polignac number, because 165470409601493 - 2²⁶ = 165470342492629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165470409601193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82735204800746 + 82735204800747.

It is an arithmetic number, because the mean of its divisors is an integer number (82735204800747).

Almost surely, 2^{165470409601493} is an apocalyptic number.

It is an amenable number.

165470409601493 is a deficient number, since it is larger than the sum of its proper divisors (1).

165470409601493 is an equidigital number, since it uses as much as digits as its factorization.

165470409601493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 165470409601493 in words is "one hundred sixty-five trillion, four hundred seventy billion, four hundred nine million, six hundred one thousand, four hundred ninety-three".