220606353242 has 24 divisors (see below), whose sum is σ = 372598410996. Its totient is φ = 97829864000.

The previous prime is 220606353223. The next prime is 220606353257. The reversal of 220606353242 is 242353606022.

It can be written as a sum of positive squares in 2 ways, for example, as 184144832641 + 36461520601 = 429121^2 + 190949^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11107109 + ... + 11126952.

Almost surely, 2^220606353242 is an apocalyptic number.

220606353242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220606353242 is a deficient number, since it is larger than the sum of its proper divisors (151992057754).

220606353242 is a wasteful number, since it uses less digits than its factorization.

220606353242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22234126 (or 22234115 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 220606353242 its reverse (242353606022), we get a palindrome (462959959264).

The spelling of 220606353242 in words is "two hundred twenty billion, six hundred six million, three hundred fifty-three thousand, two hundred forty-two".