420620552001 has 40 divisors (see below), whose sum is σ = 706088201280. Its totient is φ = 247589340768.

The previous prime is 420620551979. The next prime is 420620552057. The reversal of 420620552001 is 100255026024.

It is not a de Polignac number, because 420620552001 - 2⁵ = 420620551969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420620552071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8659471 + ... + 8707908.

It is an arithmetic number, because the mean of its divisors is an integer number (17652205032).

Almost surely, 2^420620552001 is an apocalyptic number.

It is an amenable number.

420620552001 is a deficient number, since it is larger than the sum of its proper divisors (285467649279).

420620552001 is a wasteful number, since it uses less digits than its factorization.

420620552001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17367427 (or 17367418 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 420620552001 its reverse (100255026024), we get a palindrome (520875578025).

The spelling of 420620552001 in words is "four hundred twenty billion, six hundred twenty million, five hundred fifty-two thousand, one".