2165401162 has 8 divisors (see below), whose sum is σ = 3250609956. Its totient is φ = 1081864512.

The previous prime is 2165401159. The next prime is 2165401219. The reversal of 2165401162 is 2611045612.

It can be written as a sum of positive squares in 2 ways, for example, as 1981229121 + 184172041 = 44511^2 + 13571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2165401162.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414793 + ... + 419980.

Almost surely, 2^2165401162 is an apocalyptic number.

2165401162 is a deficient number, since it is larger than the sum of its proper divisors (1085208794).

2165401162 is a wasteful number, since it uses less digits than its factorization.

2165401162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836072.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2165401162 is about 46533.8711263097. The cubic root of 2165401162 is about 1293.7373663434.

Adding to 2165401162 its reverse (2611045612), we get a palindrome (4776446774).

The spelling of 2165401162 in words is "two billion, one hundred sixty-five million, four hundred one thousand, one hundred sixty-two".