420163399711 has 16 divisors (see below), whose sum is σ = 462414372768. Its totient is φ = 381746713920.

The previous prime is 420163399681. The next prime is 420163399753. The reversal of 420163399711 is 117993361024.

It is not a de Polignac number, because 420163399711 - 2²¹ = 420161302559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420163399771) 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 15 ways as a sum of consecutive naturals, for example, 2243205 + ... + 2423281.

It is an arithmetic number, because the mean of its divisors is an integer number (28900898298).

Almost surely, 2^420163399711 is an apocalyptic number.

420163399711 is a deficient number, since it is larger than the sum of its proper divisors (42250973057).

420163399711 is a wasteful number, since it uses less digits than its factorization.

420163399711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181863 (or 181841 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 420163399711 in words is "four hundred twenty billion, one hundred sixty-three million, three hundred ninety-nine thousand, seven hundred eleven".