2165000366 has 4 divisors (see below), whose sum is σ = 3247500552. Its totient is φ = 1082500182.

The previous prime is 2165000297. The next prime is 2165000377. The reversal of 2165000366 is 6630005612.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541250090 + ... + 541250093.

It is an arithmetic number, because the mean of its divisors is an integer number (811875138).

Almost surely, 2^2165000366 is an apocalyptic number.

2165000366 is a deficient number, since it is larger than the sum of its proper divisors (1082500186).

2165000366 is a wasteful number, since it uses less digits than its factorization.

2165000366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082500185.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2165000366 is about 46529.5644295108. The cubic root of 2165000366 is about 1293.6575417570.

Adding to 2165000366 its reverse (6630005612), we get a palindrome (8795005978).

The spelling of 2165000366 in words is "two billion, one hundred sixty-five million, three hundred sixty-six", and thus it is an aban number.