421416323365 has 16 divisors (see below), whose sum is σ = 509136984576. Its totient is φ = 334845403200.

The previous prime is 421416323323. The next prime is 421416323387. The reversal of 421416323365 is 563323614124.

It is not a de Polignac number, because 421416323365 - 2¹¹ = 421416321317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 611410 + ... + 1103020.

It is an arithmetic number, because the mean of its divisors is an integer number (31821061536).

Almost surely, 2^421416323365 is an apocalyptic number.

It is an amenable number.

421416323365 is a deficient number, since it is larger than the sum of its proper divisors (87720661211).

421416323365 is a wasteful number, since it uses less digits than its factorization.

421416323365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492780.

The product of its digits is 311040, while the sum is 40.

Adding to 421416323365 its reverse (563323614124), we get a palindrome (984739937489).

The spelling of 421416323365 in words is "four hundred twenty-one billion, four hundred sixteen million, three hundred twenty-three thousand, three hundred sixty-five".