430136165421 has 24 divisors (see below), whose sum is σ = 630126454464. Its totient is φ = 282688163520.

The previous prime is 430136165357. The next prime is 430136165423. The reversal of 430136165421 is 124561631034.

430136165421 is a `hidden beast` number, since 4 + 3 + 0 + 13 + 616 + 5 + 4 + 21 = 666.

It is not a de Polignac number, because 430136165421 - 2⁶ = 430136165357 is a prime.

It is a super-2 number, since 2×430136165421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430136165423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6957970 + ... + 7019516.

It is an arithmetic number, because the mean of its divisors is an integer number (26255268936).

Almost surely, 2^430136165421 is an apocalyptic number.

It is an amenable number.

430136165421 is a deficient number, since it is larger than the sum of its proper divisors (199990289043).

430136165421 is a wasteful number, since it uses less digits than its factorization.

430136165421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72561 (or 72558 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 430136165421 its reverse (124561631034), we get a palindrome (554697796455).

The spelling of 430136165421 in words is "four hundred thirty billion, one hundred thirty-six million, one hundred sixty-five thousand, four hundred twenty-one".