220423145450 has 48 divisors (see below), whose sum is σ = 411394413120. Its totient is φ = 87867141120.

The previous prime is 220423145419. The next prime is 220423145471. The reversal of 220423145450 is 54541324022.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17851979 + ... + 17864321.

It is an arithmetic number, because the mean of its divisors is an integer number (8570716940).

Almost surely, 2^220423145450 is an apocalyptic number.

220423145450 is a deficient number, since it is larger than the sum of its proper divisors (190971267670).

220423145450 is a wasteful number, since it uses less digits than its factorization.

220423145450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13551 (or 13546 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 220423145450 its reverse (54541324022), we get a palindrome (274964469472).

The spelling of 220423145450 in words is "two hundred twenty billion, four hundred twenty-three million, one hundred forty-five thousand, four hundred fifty".