160647579153221 has 2 divisors, whose sum is σ = 160647579153222. Its totient is φ = 160647579153220.

The previous prime is 160647579153197. The next prime is 160647579153241. The reversal of 160647579153221 is 122351975746061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160588961416900 + 58617736321 = 12672370^2 + 242111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-160647579153221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160647579153241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80323789576610 + 80323789576611.

It is an arithmetic number, because the mean of its divisors is an integer number (80323789576611).

Almost surely, 2^{160647579153221} is an apocalyptic number.

It is an amenable number.

160647579153221 is a deficient number, since it is larger than the sum of its proper divisors (1).

160647579153221 is an equidigital number, since it uses as much as digits as its factorization.

160647579153221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19051200, while the sum is 59.

The spelling of 160647579153221 in words is "one hundred sixty trillion, six hundred forty-seven billion, five hundred seventy-nine million, one hundred fifty-three thousand, two hundred twenty-one".