160220661 has 8 divisors (see below), whose sum is σ = 218838144. Its totient is φ = 104208480.

The previous prime is 160220647. The next prime is 160220689. The reversal of 160220661 is 166022061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 160220661 - 2⁵ = 160220629 is a prime.

It is a super-2 number, since 2×160220661² = 51341320422553842, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160220261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651181 + ... + 651426.

It is an arithmetic number, because the mean of its divisors is an integer number (27354768).

Almost surely, 2^160220661 is an apocalyptic number.

It is an amenable number.

160220661 is a deficient number, since it is larger than the sum of its proper divisors (58617483).

160220661 is a wasteful number, since it uses less digits than its factorization.

160220661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302651.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 160220661 is about 12657.8300272993. The cubic root of 160220661 is about 543.1329778879.

The spelling of 160220661 in words is "one hundred sixty million, two hundred twenty thousand, six hundred sixty-one".