220402420002456 has 64 divisors (see below), whose sum is σ = 559666554355200. Its totient is φ = 72318358569600.

The previous prime is 220402420002407. The next prime is 220402420002467. The reversal of 220402420002456 is 654200024204022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174970615 + ... + 176225766.

It is an arithmetic number, because the mean of its divisors is an integer number (8744789911800).

Almost surely, 2^{220402420002456} is an apocalyptic number.

It is an amenable number.

220402420002456 is an abundant number, since it is smaller than the sum of its proper divisors (339264134352744).

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

220402420002456 is a wasteful number, since it uses less digits than its factorization.

220402420002456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351196800 (or 351196796 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 220402420002456 its reverse (654200024204022), we get a palindrome (874602444206478).

The spelling of 220402420002456 in words is "two hundred twenty trillion, four hundred two billion, four hundred twenty million, two thousand, four hundred fifty-six".