160661155 has 4 divisors (see below), whose sum is σ = 192793392. Its totient is φ = 128528920.

The previous prime is 160661153. The next prime is 160661167. The reversal of 160661155 is 551166061.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 160661155 - 2¹ = 160661153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160661153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16066111 + ... + 16066120.

It is an arithmetic number, because the mean of its divisors is an integer number (48198348).

Almost surely, 2^160661155 is an apocalyptic number.

160661155 is a deficient number, since it is larger than the sum of its proper divisors (32132237).

160661155 is an equidigital number, since it uses as much as digits as its factorization.

160661155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32132236.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 160661155 is about 12675.2181440794. The cubic root of 160661155 is about 543.6302668504.

The spelling of 160661155 in words is "one hundred sixty million, six hundred sixty-one thousand, one hundred fifty-five".