160720217211155 has 16 divisors (see below), whose sum is σ = 220416540738240. Its totient is φ = 110208027520512.

The previous prime is 160720217211143. The next prime is 160720217211217. The reversal of 160720217211155 is 551112712027061.

It is a cyclic number.

It is not a de Polignac number, because 160720217211155 - 2¹⁰ = 160720217210131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39549791 + ... + 43423799.

It is an arithmetic number, because the mean of its divisors is an integer number (13776033796140).

Almost surely, 2^{160720217211155} is an apocalyptic number.

160720217211155 is a deficient number, since it is larger than the sum of its proper divisors (59696323527085).

160720217211155 is a wasteful number, since it uses less digits than its factorization.

160720217211155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059358.

The product of its (nonzero) digits is 58800, while the sum is 41.

The spelling of 160720217211155 in words is "one hundred sixty trillion, seven hundred twenty billion, two hundred seventeen million, two hundred eleven thousand, one hundred fifty-five".