420664619952 has 60 divisors (see below), whose sum is σ = 1177518478240. Its totient is φ = 140192740224.

The previous prime is 420664619951. The next prime is 420664619987. The reversal of 420664619952 is 259916466024.

420664619952 is a `hidden beast` number, since 42 + 0 + 6 + 6 + 461 + 99 + 52 = 666.

It is not an unprimeable number, because it can be changed into a prime (420664619951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 409353 + ... + 1004439.

Almost surely, 2^420664619952 is an apocalyptic number.

It is an amenable number.

420664619952 is an abundant number, since it is smaller than the sum of its proper divisors (756853858288).

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

420664619952 is a wasteful number, since it uses less digits than its factorization.

420664619952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600010 (or 600001 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 420664619952 in words is "four hundred twenty billion, six hundred sixty-four million, six hundred nineteen thousand, nine hundred fifty-two".