420730663071 has 32 divisors (see below), whose sum is σ = 611150112000. Its totient is φ = 256440377088.

The previous prime is 420730662991. The next prime is 420730663079. The reversal of 420730663071 is 170366037024.

It is not a de Polignac number, because 420730663071 - 2²¹ = 420728565919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420730663079) 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 31 ways as a sum of consecutive naturals, for example, 3499800 + ... + 3618018.

It is an arithmetic number, because the mean of its divisors is an integer number (19098441000).

Almost surely, 2^420730663071 is an apocalyptic number.

420730663071 is a deficient number, since it is larger than the sum of its proper divisors (190419448929).

420730663071 is a wasteful number, since it uses less digits than its factorization.

420730663071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120423.

The product of its (nonzero) digits is 127008, while the sum is 39.

It can be divided in two parts, 420730 and 663071, that added together give a palindrome (1083801).

The spelling of 420730663071 in words is "four hundred twenty billion, seven hundred thirty million, six hundred sixty-three thousand, seventy-one".