420221655006 has 8 divisors (see below), whose sum is σ = 840443310024. Its totient is φ = 140073885000.

The previous prime is 420221654987. The next prime is 420221655037. The reversal of 420221655006 is 600556122024.

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

420221655006 is an admirable number.

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, 35018471245 + ... + 35018471256.

It is an arithmetic number, because the mean of its divisors is an integer number (105055413753).

Almost surely, 2^420221655006 is an apocalyptic number.

420221655006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

420221655006 is a wasteful number, since it uses less digits than its factorization.

420221655006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70036942506.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 420221655006 in words is "four hundred twenty billion, two hundred twenty-one million, six hundred fifty-five thousand, six".