418461721055 has 8 divisors (see below), whose sum is σ = 573890360352. Its totient is φ = 286945180128.

The previous prime is 418461721021. The next prime is 418461721061. The reversal of 418461721055 is 550127164814.

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 418461721055 - 2¹⁸ = 418461458911 is a prime.

It is a super-2 number, since 2×418461721055² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 418461720997 and 418461721015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5978024552 + ... + 5978024621.

It is an arithmetic number, because the mean of its divisors is an integer number (71736295044).

Almost surely, 2^418461721055 is an apocalyptic number.

418461721055 is a deficient number, since it is larger than the sum of its proper divisors (155428639297).

418461721055 is a wasteful number, since it uses less digits than its factorization.

418461721055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956049185.

The product of its (nonzero) digits is 268800, while the sum is 44.

Adding to 418461721055 its reverse (550127164814), we get a palindrome (968588885869).

The spelling of 418461721055 in words is "four hundred eighteen billion, four hundred sixty-one million, seven hundred twenty-one thousand, fifty-five".