20062163421 has 24 divisors (see below), whose sum is σ = 29913061464. Its totient is φ = 12947195520.

The previous prime is 20062163417. The next prime is 20062163477. The reversal of 20062163421 is 12436126002.

20062163421 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 2 + 1 + 634 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6422259321 + 13639904100 = 80139^2 + 116790^2 .

It is not a de Polignac number, because 20062163421 - 2² = 20062163417 is a prime.

It is a super-2 number, since 2×20062163421² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20062163411) 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 23 ways as a sum of consecutive naturals, for example, 87310 + ... + 218511.

It is an arithmetic number, because the mean of its divisors is an integer number (1246377561).

Almost surely, 2^20062163421 is an apocalyptic number.

It is an amenable number.

20062163421 is a deficient number, since it is larger than the sum of its proper divisors (9850898043).

20062163421 is a wasteful number, since it uses less digits than its factorization.

20062163421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306061 (or 306058 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 20062163421 its reverse (12436126002), we get a palindrome (32498289423).

The spelling of 20062163421 in words is "twenty billion, sixty-two million, one hundred sixty-three thousand, four hundred twenty-one".