2111504516216 has 8 divisors (see below), whose sum is σ = 3959070967920. Its totient is φ = 1055752258104.

The previous prime is 2111504516207. The next prime is 2111504516279. The reversal of 2111504516216 is 6126154051112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 131969032256 + ... + 131969032271.

It is an arithmetic number, because the mean of its divisors is an integer number (494883870990).

Almost surely, 2^{2111504516216} is an apocalyptic number.

It is an amenable number.

2111504516216 is a deficient number, since it is larger than the sum of its proper divisors (1847566451704).

2111504516216 is a wasteful number, since it uses less digits than its factorization.

2111504516216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263938064533 (or 263938064529 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 35.

Adding to 2111504516216 its reverse (6126154051112), we get a palindrome (8237658567328).

The spelling of 2111504516216 in words is "two trillion, one hundred eleven billion, five hundred four million, five hundred sixteen thousand, two hundred sixteen".