420002355501 has 12 divisors (see below), whose sum is σ = 606840576160. Its totient is φ = 279922874760.

The previous prime is 420002355467. The next prime is 420002355559. The reversal of 420002355501 is 105553200024.

It is a happy number.

420002355501 is a `hidden beast` number, since 420 + 0 + 0 + 235 + 5 + 5 + 0 + 1 = 666.

It is not a de Polignac number, because 420002355501 - 2¹⁰ = 420002354477 is a prime.

It is a super-2 number, since 2×420002355501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420002355401) 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 11 ways as a sum of consecutive naturals, for example, 6524155 + ... + 6588216.

Almost surely, 2^420002355501 is an apocalyptic number.

It is an amenable number.

420002355501 is a deficient number, since it is larger than the sum of its proper divisors (186838220659).

420002355501 is a wasteful number, since it uses less digits than its factorization.

420002355501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13115936 (or 13115933 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 420002355501 its reverse (105553200024), we get a palindrome (525555555525).

It can be divided in two parts, 4200023 and 55501, that added together give a palindrome (4255524).

The spelling of 420002355501 in words is "four hundred twenty billion, two million, three hundred fifty-five thousand, five hundred one".