6416165987 has 24 divisors (see below), whose sum is σ = 8423008560. Its totient is φ = 4827197760.

The previous prime is 6416165971. The next prime is 6416166079. The reversal of 6416165987 is 7895616146.

It is not a de Polignac number, because 6416165987 - 2⁴ = 6416165971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6416165927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 189608 + ... + 220869.

It is an arithmetic number, because the mean of its divisors is an integer number (350958690).

Almost surely, 2^6416165987 is an apocalyptic number.

6416165987 is a deficient number, since it is larger than the sum of its proper divisors (2006842573).

6416165987 is a wasteful number, since it uses less digits than its factorization.

6416165987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410531 (or 410524 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The square root of 6416165987 is about 80100.9736957048. The cubic root of 6416165987 is about 1858.1974662507.

The spelling of 6416165987 in words is "six billion, four hundred sixteen million, one hundred sixty-five thousand, nine hundred eighty-seven".