220318402775 has 6 divisors (see below), whose sum is σ = 273194819472. Its totient is φ = 176254722200.

The previous prime is 220318402753. The next prime is 220318402807. The reversal of 220318402775 is 577204813022.

It is not a de Polignac number, because 220318402775 - 2¹⁸ = 220318140631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4406368031 + ... + 4406368080.

It is an arithmetic number, because the mean of its divisors is an integer number (45532469912).

Almost surely, 2^220318402775 is an apocalyptic number.

220318402775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

220318402775 is a deficient number, since it is larger than the sum of its proper divisors (52876416697).

220318402775 is an equidigital number, since it uses as much as digits as its factorization.

220318402775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812736121 (or 8812736116 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 220318402775 in words is "two hundred twenty billion, three hundred eighteen million, four hundred two thousand, seven hundred seventy-five".