420270225665 has 8 divisors (see below), whose sum is σ = 515054574720. Its totient is φ = 329062644592.

The previous prime is 420270225637. The next prime is 420270225737. The reversal of 420270225665 is 566522072024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 420270225665 - 2⁶ = 420270225601 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894191735 + ... + 894192204.

It is an arithmetic number, because the mean of its divisors is an integer number (64381821840).

Almost surely, 2^420270225665 is an apocalyptic number.

It is an amenable number.

420270225665 is a deficient number, since it is larger than the sum of its proper divisors (94784349055).

420270225665 is a wasteful number, since it uses less digits than its factorization.

420270225665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788383991.

The product of its (nonzero) digits is 403200, while the sum is 41.

Adding to 420270225665 its reverse (566522072024), we get a palindrome (986792297689).

The spelling of 420270225665 in words is "four hundred twenty billion, two hundred seventy million, two hundred twenty-five thousand, six hundred sixty-five".