2195165044 has 12 divisors (see below), whose sum is σ = 3842652100. Its totient is φ = 1097264448.

The previous prime is 2195165023. The next prime is 2195165047. The reversal of 2195165044 is 4405615912.

It can be written as a sum of positive squares in 2 ways, for example, as 754051600 + 1441113444 = 27460^2 + 37962^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2195164994 and 2195165012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195165047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63639 + ... + 91870.

Almost surely, 2^2195165044 is an apocalyptic number.

It is an amenable number.

2195165044 is a deficient number, since it is larger than the sum of its proper divisors (1647487056).

2195165044 is a wasteful number, since it uses less digits than its factorization.

2195165044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159042 (or 159040 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 2195165044 is about 46852.5884450368. The cubic root of 2195165044 is about 1299.6379749320.

The spelling of 2195165044 in words is "two billion, one hundred ninety-five million, one hundred sixty-five thousand, forty-four".