2215998511516 has 12 divisors (see below), whose sum is σ = 3878030745288. Its totient is φ = 1107989727152.

The previous prime is 2215998511513. The next prime is 2215998511549. The reversal of 2215998511516 is 6151158995122.

It is a super-2 number, since 2×2215998511516² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215998511513) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1845451 + ... + 2799586.

It is an arithmetic number, because the mean of its divisors is an integer number (323169228774).

Almost surely, 2^{2215998511516} is an apocalyptic number.

It is an amenable number.

2215998511516 is a deficient number, since it is larger than the sum of its proper divisors (1662032233772).

2215998511516 is a wasteful number, since it uses less digits than its factorization.

2215998511516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764308 (or 4764306 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 55.

The spelling of 2215998511516 in words is "two trillion, two hundred fifteen billion, nine hundred ninety-eight million, five hundred eleven thousand, five hundred sixteen".