12041645620 has 24 divisors (see below), whose sum is σ = 25292933064. Its totient is φ = 4815614976.

The previous prime is 12041645591. The next prime is 12041645639. The reversal of 12041645620 is 2654614021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 813276324 + 11228369296 = 28518^2 + 105964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33052 + ... + 158668.

It is an arithmetic number, because the mean of its divisors is an integer number (1053872211).

Almost surely, 2^12041645620 is an apocalyptic number.

12041645620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12041645620 is an abundant number, since it is smaller than the sum of its proper divisors (13251287444).

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

12041645620 is a wasteful number, since it uses less digits than its factorization.

12041645620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130419 (or 130417 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 12041645620 in words is "twelve billion, forty-one million, six hundred forty-five thousand, six hundred twenty".