2011554120 has 64 divisors (see below), whose sum is σ = 6039256320. Its totient is φ = 536006144.

The previous prime is 2011554119. The next prime is 2011554131. The reversal of 2011554120 is 214551102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172804 + ... + 184076.

It is an arithmetic number, because the mean of its divisors is an integer number (94363380).

Almost surely, 2^2011554120 is an apocalyptic number.

2011554120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011554120 is an abundant number, since it is smaller than the sum of its proper divisors (4027702200).

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

2011554120 is a wasteful number, since it uses less digits than its factorization.

2011554120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12774 (or 12770 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2011554120 is about 44850.3525069759. The cubic root of 2011554120 is about 1262.3426058729.

The spelling of 2011554120 in words is "two billion, eleven million, five hundred fifty-four thousand, one hundred twenty".