220651023 has 4 divisors (see below), whose sum is σ = 294201368. Its totient is φ = 147100680.

The previous prime is 220651021. The next prime is 220651049. The reversal of 220651023 is 320156022.

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

It is not a de Polignac number, because 220651023 - 2¹ = 220651021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220651021) 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, 36775168 + ... + 36775173.

It is an arithmetic number, because the mean of its divisors is an integer number (73550342).

Almost surely, 2^220651023 is an apocalyptic number.

220651023 is a deficient number, since it is larger than the sum of its proper divisors (73550345).

220651023 is an equidigital number, since it uses as much as digits as its factorization.

220651023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73550344.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 220651023 is about 14854.3267434105. The cubic root of 220651023 is about 604.2759573691.

The spelling of 220651023 in words is "two hundred twenty million, six hundred fifty-one thousand, twenty-three".