220116477 has 20 divisors (see below), whose sum is σ = 342394240. Its totient is φ = 125776728.

The previous prime is 220116469. The next prime is 220116497. The reversal of 220116477 is 774611022.

It is not a de Polignac number, because 220116477 - 2³ = 220116469 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 (220116427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8077 + ... + 22482.

It is an arithmetic number, because the mean of its divisors is an integer number (17119712).

Almost surely, 2^220116477 is an apocalyptic number.

It is an amenable number.

220116477 is a deficient number, since it is larger than the sum of its proper divisors (122277763).

220116477 is an frugal number, since it uses more digits than its factorization.

220116477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30590 (or 30569 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 220116477 is about 14836.3228934935. The cubic root of 220116477 is about 603.7875927023.

Adding to 220116477 its reverse (774611022), we get a palindrome (994727499).

The spelling of 220116477 in words is "two hundred twenty million, one hundred sixteen thousand, four hundred seventy-seven".