205420868024502 has 32 divisors (see below), whose sum is σ = 442493616499200. Its totient is φ = 63199468075680.

The previous prime is 205420868024501. The next prime is 205420868024503.

It is a happy number.

205420868024502 is nontrivially palindromic in base 10.

205420868024502 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205420868024501) and next prime (205420868024503).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205420868024501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144137502 + ... + 145555697.

It is an arithmetic number, because the mean of its divisors is an integer number (13827925515600).

Almost surely, 2^{205420868024502} is an apocalyptic number.

205420868024502 is an abundant number, since it is smaller than the sum of its proper divisors (237072748474698).

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

205420868024502 is a wasteful number, since it uses less digits than its factorization.

205420868024502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289702308.

The product of its (nonzero) digits is 2457600, while the sum is 48.

The spelling of 205420868024502 in words is "two hundred five trillion, four hundred twenty billion, eight hundred sixty-eight million, twenty-four thousand, five hundred two".