2195649155 has 8 divisors (see below), whose sum is σ = 3011176032. Its totient is φ = 1505587968.

The previous prime is 2195649151. The next prime is 2195649163. The reversal of 2195649155 is 5519465912.

2195649155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2195649155 - 2² = 2195649151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195649151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31366382 + ... + 31366451.

It is an arithmetic number, because the mean of its divisors is an integer number (376397004).

Almost surely, 2^2195649155 is an apocalyptic number.

2195649155 is a deficient number, since it is larger than the sum of its proper divisors (815526877).

2195649155 is an equidigital number, since it uses as much as digits as its factorization.

2195649155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62732845.

The product of its digits is 486000, while the sum is 47.

The square root of 2195649155 is about 46857.7544809821. The cubic root of 2195649155 is about 1299.7335065179.

The spelling of 2195649155 in words is "two billion, one hundred ninety-five million, six hundred forty-nine thousand, one hundred fifty-five".