20146113620 has 24 divisors (see below), whose sum is σ = 42333698400. Its totient is φ = 8053329312.

The previous prime is 20146113599. The next prime is 20146113629. The reversal of 20146113620 is 2631164102.

It is a self number, because there is not a number n which added to its sum of digits gives 20146113620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146113629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287390 + ... + 350549.

It is an arithmetic number, because the mean of its divisors is an integer number (1763904100).

Almost surely, 2^20146113620 is an apocalyptic number.

20146113620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20146113620 is an abundant number, since it is smaller than the sum of its proper divisors (22187584780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20146113620 is a wasteful number, since it uses less digits than its factorization.

20146113620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639527 (or 639525 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 20146113620 its reverse (2631164102), we get a palindrome (22777277722).

The spelling of 20146113620 in words is "twenty billion, one hundred forty-six million, one hundred thirteen thousand, six hundred twenty".