2120554512 has 40 divisors (see below), whose sum is σ = 6086778080. Its totient is φ = 706851360.

The previous prime is 2120554493. The next prime is 2120554519. The reversal of 2120554512 is 2154550212.

2120554512 is a `hidden beast` number, since 2 + 1 + 205 + 5 + 451 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2120554519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2453914 + ... + 2454777.

It is an arithmetic number, because the mean of its divisors is an integer number (152169452).

Almost surely, 2^2120554512 is an apocalyptic number.

It is an amenable number.

2120554512 is an abundant number, since it is smaller than the sum of its proper divisors (3966223568).

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

2120554512 is a wasteful number, since it uses less digits than its factorization.

2120554512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908708 (or 4908696 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2120554512 is about 46049.4789547070. The cubic root of 2120554512 is about 1284.7436516702.

The spelling of 2120554512 in words is "two billion, one hundred twenty million, five hundred fifty-four thousand, five hundred twelve".