2916129866 has 16 divisors (see below), whose sum is σ = 4737907944. Its totient is φ = 1338124224.

The previous prime is 2916129841. The next prime is 2916129871. The reversal of 2916129866 is 6689216192.

It can be written as a sum of positive squares in 4 ways, for example, as 2517129241 + 399000625 = 50171^2 + 19975^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319661 + ... + 328656.

Almost surely, 2^2916129866 is an apocalyptic number.

2916129866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2916129866 is a deficient number, since it is larger than the sum of its proper divisors (1821778078).

2916129866 is a wasteful number, since it uses less digits than its factorization.

2916129866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648505.

The product of its digits is 559872, while the sum is 50.

The square root of 2916129866 is about 54001.2024495751. The cubic root of 2916129866 is about 1428.6821552451.

The spelling of 2916129866 in words is "two billion, nine hundred sixteen million, one hundred twenty-nine thousand, eight hundred sixty-six".