421700054665 has 8 divisors (see below), whose sum is σ = 515587991688. Its totient is φ = 330994759680.

The previous prime is 421700054651. The next prime is 421700054723. The reversal of 421700054665 is 566450007124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 128901104784 + 292798949881 = 359028^2 + 541109^2 .

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

It is not a de Polignac number, because 421700054665 - 2¹⁹ = 421699530377 is a prime.

It is a super-2 number, since 2×421700054665² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

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, 795660216 + ... + 795660745.

It is an arithmetic number, because the mean of its divisors is an integer number (64448498961).

Almost surely, 2^421700054665 is an apocalyptic number.

It is an amenable number.

421700054665 is a deficient number, since it is larger than the sum of its proper divisors (93887937023).

421700054665 is a wasteful number, since it uses less digits than its factorization.

421700054665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591321019.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 421700054665 in words is "four hundred twenty-one billion, seven hundred million, fifty-four thousand, six hundred sixty-five".