220345640232 has 32 divisors (see below), whose sum is σ = 550876814880. Its totient is φ = 73446851520.

The previous prime is 220345640189. The next prime is 220345640293. The reversal of 220345640232 is 232046543022.

It is a junction number, because it is equal to n+sod(n) for n = 220345640193 and 220345640202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382007 + ... + 1533177.

It is an arithmetic number, because the mean of its divisors is an integer number (17214900465).

Almost surely, 2^220345640232 is an apocalyptic number.

It is an amenable number.

220345640232 is an abundant number, since it is smaller than the sum of its proper divisors (330531174648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220345640232 is a wasteful number, since it uses less digits than its factorization.

220345640232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211913 (or 211909 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

The spelling of 220345640232 in words is "two hundred twenty billion, three hundred forty-five million, six hundred forty thousand, two hundred thirty-two".