2195195146509 has 16 divisors (see below), whose sum is σ = 2939408962560. Its totient is φ = 1457223363120.

The previous prime is 2195195146477. The next prime is 2195195146549. The reversal of 2195195146509 is 9056415915912.

It is not a de Polignac number, because 2195195146509 - 2⁵ = 2195195146477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195195146549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9338994 + ... + 9571164.

It is an arithmetic number, because the mean of its divisors is an integer number (183713060160).

Almost surely, 2^{2195195146509} is an apocalyptic number.

It is an amenable number.

2195195146509 is a deficient number, since it is larger than the sum of its proper divisors (744213816051).

2195195146509 is a wasteful number, since it uses less digits than its factorization.

2195195146509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245600.

The product of its (nonzero) digits is 4374000, while the sum is 57.

The spelling of 2195195146509 in words is "two trillion, one hundred ninety-five billion, one hundred ninety-five million, one hundred forty-six thousand, five hundred nine".