220240401629 has 2 divisors, whose sum is σ = 220240401630. Its totient is φ = 220240401628.

The previous prime is 220240401593. The next prime is 220240401643. The reversal of 220240401629 is 926104042022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218135702500 + 2104699129 = 467050^2 + 45877^2 .

It is a cyclic number.

It is not a de Polignac number, because 220240401629 - 2²⁰ = 220239353053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220240401595 and 220240401604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220240400629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110120200814 + 110120200815.

It is an arithmetic number, because the mean of its divisors is an integer number (110120200815).

Almost surely, 2^220240401629 is an apocalyptic number.

It is an amenable number.

220240401629 is a deficient number, since it is larger than the sum of its proper divisors (1).

220240401629 is an equidigital number, since it uses as much as digits as its factorization.

220240401629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 220240401629 in words is "two hundred twenty billion, two hundred forty million, four hundred one thousand, six hundred twenty-nine".