220404450351 has 64 divisors (see below), whose sum is σ = 315574272000. Its totient is φ = 136435332096.

The previous prime is 220404450337. The next prime is 220404450401. The reversal of 220404450351 is 153054404022.

It is not a de Polignac number, because 220404450351 - 2⁷ = 220404450223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220404450551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 251315925 + ... + 251316801.

It is an arithmetic number, because the mean of its divisors is an integer number (4930848000).

Almost surely, 2^220404450351 is an apocalyptic number.

220404450351 is a deficient number, since it is larger than the sum of its proper divisors (95169821649).

220404450351 is a wasteful number, since it uses less digits than its factorization.

220404450351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 220404450351 its reverse (153054404022), we get a palindrome (373458854373).

The spelling of 220404450351 in words is "two hundred twenty billion, four hundred four million, four hundred fifty thousand, three hundred fifty-one".