2116662515 has 64 divisors (see below), whose sum is σ = 3044708352. Its totient is φ = 1396454400.

The previous prime is 2116662473. The next prime is 2116662553. The reversal of 2116662515 is 5152666112.

It is not a de Polignac number, because 2116662515 - 2⁶ = 2116662451 is a prime.

It is a super-2 number, since 2×2116662515² = 8960520404812250450, which contains 22 as substring.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1918454 + ... + 1919556.

It is an arithmetic number, because the mean of its divisors is an integer number (47573568).

Almost surely, 2^2116662515 is an apocalyptic number.

2116662515 is a deficient number, since it is larger than the sum of its proper divisors (928045837).

2116662515 is a wasteful number, since it uses less digits than its factorization.

2116662515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220.

The product of its digits is 21600, while the sum is 35.

The square root of 2116662515 is about 46007.2006864143. The cubic root of 2116662515 is about 1283.9571780360.

The spelling of 2116662515 in words is "two billion, one hundred sixteen million, six hundred sixty-two thousand, five hundred fifteen".