420822556198 has 8 divisors (see below), whose sum is σ = 688618728360. Its totient is φ = 191282980080.

The previous prime is 420822556181. The next prime is 420822556207. The reversal of 420822556198 is 891655228024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9564148983 + ... + 9564149026.

It is an arithmetic number, because the mean of its divisors is an integer number (86077341045).

Almost surely, 2^420822556198 is an apocalyptic number.

420822556198 is a deficient number, since it is larger than the sum of its proper divisors (267796172162).

420822556198 is a wasteful number, since it uses less digits than its factorization.

420822556198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19128298022.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 420822556198 in words is "four hundred twenty billion, eight hundred twenty-two million, five hundred fifty-six thousand, one hundred ninety-eight".