1605160220211 has 12 divisors (see below), whose sum is σ = 2328265873440. Its totient is φ = 1065629377680.

The previous prime is 1605160220201. The next prime is 1605160220227. The reversal of 1605160220211 is 1120220615061.

1605160220211 is a `hidden beast` number, since 1 + 6 + 0 + 51 + 602 + 2 + 0 + 2 + 1 + 1 = 666.

It is not a de Polignac number, because 1605160220211 - 2¹⁴ = 1605160203827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1605160220201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373117380 + ... + 373121681.

It is an arithmetic number, because the mean of its divisors is an integer number (194022156120).

Almost surely, 2^{1605160220211} is an apocalyptic number.

1605160220211 is a deficient number, since it is larger than the sum of its proper divisors (723105653229).

1605160220211 is a wasteful number, since it uses less digits than its factorization.

1605160220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746239306 (or 746239303 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 1605160220211 its reverse (1120220615061), we get a palindrome (2725380835272).

The spelling of 1605160220211 in words is "one trillion, six hundred five billion, one hundred sixty million, two hundred twenty thousand, two hundred eleven".