162570940609549 has 2 divisors, whose sum is σ = 162570940609550. Its totient is φ = 162570940609548.

The previous prime is 162570940609547. The next prime is 162570940609589. The reversal of 162570940609549 is 945906049075261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155305182622500 + 7265757987049 = 12462150^2 + 2695507^2 .

It is a cyclic number.

It is not a de Polignac number, because 162570940609549 - 2¹ = 162570940609547 is a prime.

Together with 162570940609547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162570940609543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81285470304774 + 81285470304775.

It is an arithmetic number, because the mean of its divisors is an integer number (81285470304775).

Almost surely, 2^{162570940609549} is an apocalyptic number.

It is an amenable number.

162570940609549 is a deficient number, since it is larger than the sum of its proper divisors (1).

162570940609549 is an equidigital number, since it uses as much as digits as its factorization.

162570940609549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 146966400, while the sum is 67.

The spelling of 162570940609549 in words is "one hundred sixty-two trillion, five hundred seventy billion, nine hundred forty million, six hundred nine thousand, five hundred forty-nine".