421662466436220 has 72 divisors (see below), whose sum is σ = 1346360857754640. Its totient is φ = 106525254677760.

The previous prime is 421662466436129. The next prime is 421662466436221. The reversal of 421662466436220 is 22634664266124.

421662466436220 is a `hidden beast` number, since 4 + 2 + 1 + 6 + 6 + 2 + 4 + 6 + 6 + 4 + 3 + 622 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421662466436221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61646556001 + ... + 61646562840.

Almost surely, 2^{421662466436220} is an apocalyptic number.

It is an amenable number.

421662466436220 is an abundant number, since it is smaller than the sum of its proper divisors (924698391318420).

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

421662466436220 is a wasteful number, since it uses less digits than its factorization.

421662466436220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123293118875 (or 123293118870 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 54.

The spelling of 421662466436220 in words is "four hundred twenty-one trillion, six hundred sixty-two billion, four hundred sixty-six million, four hundred thirty-six thousand, two hundred twenty".