986661165 has 32 divisors (see below), whose sum is σ = 1899141120. Its totient is φ = 427305024.

The previous prime is 986661161. The next prime is 986661167. The reversal of 986661165 is 561166689.

It is not a de Polignac number, because 986661165 - 2² = 986661161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986661161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245289 + ... + 249278.

It is an arithmetic number, because the mean of its divisors is an integer number (59348160).

Almost surely, 2^986661165 is an apocalyptic number.

986661165 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

986661165 is a deficient number, since it is larger than the sum of its proper divisors (912479955).

986661165 is a wasteful number, since it uses less digits than its factorization.

986661165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494601.

The product of its digits is 466560, while the sum is 48.

The square root of 986661165 is about 31411.1630634716. The cubic root of 986661165 is about 995.5338044597.

The spelling of 986661165 in words is "nine hundred eighty-six million, six hundred sixty-one thousand, one hundred sixty-five".