211511516052 has 12 divisors (see below), whose sum is σ = 493526870816. Its totient is φ = 70503838680.

The previous prime is 211511516017. The next prime is 211511516059. The reversal of 211511516052 is 250615115112.

211511516052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211511516059) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8812979824 + ... + 8812979847.

Almost surely, 2^211511516052 is an apocalyptic number.

It is an amenable number.

211511516052 is an abundant number, since it is smaller than the sum of its proper divisors (282015354764).

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

211511516052 is a wasteful number, since it uses less digits than its factorization.

211511516052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17625959678 (or 17625959676 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 30.

The spelling of 211511516052 in words is "two hundred eleven billion, five hundred eleven million, five hundred sixteen thousand, fifty-two".