220040424451 has 2 divisors, whose sum is σ = 220040424452. Its totient is φ = 220040424450.

The previous prime is 220040424431. The next prime is 220040424481. The reversal of 220040424451 is 154424040022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220040424451 - 2⁵ = 220040424419 is a prime.

It is not a weakly prime, because it can be changed into another prime (220040424431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110020212225 + 110020212226.

It is an arithmetic number, because the mean of its divisors is an integer number (110020212226).

Almost surely, 2^220040424451 is an apocalyptic number.

220040424451 is a deficient number, since it is larger than the sum of its proper divisors (1).

220040424451 is an equidigital number, since it uses as much as digits as its factorization.

220040424451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 220040424451 its reverse (154424040022), we get a palindrome (374464464473).

The spelling of 220040424451 in words is "two hundred twenty billion, forty million, four hundred twenty-four thousand, four hundred fifty-one".