160561311 has 16 divisors (see below), whose sum is σ = 228801024. Its totient is φ = 99799424.

The previous prime is 160561309. The next prime is 160561319. The reversal of 160561311 is 113165061.

It is a cyclic number.

It is not a de Polignac number, because 160561311 - 2¹ = 160561309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160561319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9255 + ... + 20168.

It is an arithmetic number, because the mean of its divisors is an integer number (14300064).

Almost surely, 2^160561311 is an apocalyptic number.

160561311 is a deficient number, since it is larger than the sum of its proper divisors (68239713).

160561311 is a wasteful number, since it uses less digits than its factorization.

160561311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29550.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 160561311 is about 12671.2789804345. The cubic root of 160561311 is about 543.5176292351.

The spelling of 160561311 in words is "one hundred sixty million, five hundred sixty-one thousand, three hundred eleven".