2011550161516 has 48 divisors (see below), whose sum is σ = 4113538716672. Its totient is φ = 842882529600.

The previous prime is 2011550161499. The next prime is 2011550161553. The reversal of 2011550161516 is 6151610551102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3240880 + ... + 3811351.

It is an arithmetic number, because the mean of its divisors is an integer number (85698723264).

Almost surely, 2^{2011550161516} is an apocalyptic number.

It is an amenable number.

2011550161516 is an abundant number, since it is smaller than the sum of its proper divisors (2101988555156).

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

2011550161516 is a wasteful number, since it uses less digits than its factorization.

2011550161516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052470 (or 7052468 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 34.

The spelling of 2011550161516 in words is "two trillion, eleven billion, five hundred fifty million, one hundred sixty-one thousand, five hundred sixteen".