2012556480520 has 64 divisors (see below), whose sum is σ = 4595943240000. Its totient is φ = 793044204288.

The previous prime is 2012556480509. The next prime is 2012556480523. The reversal of 2012556480520 is 250846552102.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2012556480523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290211 + ... + 2027149.

It is an arithmetic number, because the mean of its divisors is an integer number (71811613125).

Almost surely, 2^{2012556480520} is an apocalyptic number.

2012556480520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012556480520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2297971620000).

2012556480520 is an abundant number, since it is smaller than the sum of its proper divisors (2583386759480).

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

2012556480520 is a wasteful number, since it uses less digits than its factorization.

2012556480520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737382 (or 1737378 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 2012556480520 in words is "two trillion, twelve billion, five hundred fifty-six million, four hundred eighty thousand, five hundred twenty".