220085961 has 8 divisors (see below), whose sum is σ = 310709664. Its totient is φ = 138093120.

The previous prime is 220085947. The next prime is 220085981. The reversal of 220085961 is 169580022.

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

It is not a de Polignac number, because 220085961 - 2¹⁰ = 220084937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220085941) 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, 2157655 + ... + 2157756.

It is an arithmetic number, because the mean of its divisors is an integer number (38838708).

Almost surely, 2^220085961 is an apocalyptic number.

It is an amenable number.

220085961 is a deficient number, since it is larger than the sum of its proper divisors (90623703).

220085961 is a wasteful number, since it uses less digits than its factorization.

220085961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315431.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 220085961 is about 14835.2944359052. The cubic root of 220085961 is about 603.7596892426.

The spelling of 220085961 in words is "two hundred twenty million, eighty-five thousand, nine hundred sixty-one".