12020641460 has 24 divisors (see below), whose sum is σ = 26571945120. Its totient is φ = 4555190304.

The previous prime is 12020641411. The next prime is 12020641481. The reversal of 12020641460 is 6414602021.

It is a super-2 number, since 2×12020641460² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15816254 + ... + 15817013.

It is an arithmetic number, because the mean of its divisors is an integer number (1107164380).

Almost surely, 2^12020641460 is an apocalyptic number.

12020641460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020641460 is an abundant number, since it is smaller than the sum of its proper divisors (14551303660).

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

12020641460 is a wasteful number, since it uses less digits than its factorization.

12020641460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31633295 (or 31633293 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 12020641460 in words is "twelve billion, twenty million, six hundred forty-one thousand, four hundred sixty".