2145599796 has 12 divisors (see below), whose sum is σ = 5006399552. Its totient is φ = 715199928.

The previous prime is 2145599791. The next prime is 2145599809. The reversal of 2145599796 is 6979955412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145599791) 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, 89399980 + ... + 89400003.

Almost surely, 2^2145599796 is an apocalyptic number.

It is an amenable number.

2145599796 is an abundant number, since it is smaller than the sum of its proper divisors (2860799756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145599796 is a wasteful number, since it uses less digits than its factorization.

2145599796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178799990 (or 178799988 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 57.

The square root of 2145599796 is about 46320.6195554420. The cubic root of 2145599796 is about 1289.7817862972.

The spelling of 2145599796 in words is "two billion, one hundred forty-five million, five hundred ninety-nine thousand, seven hundred ninety-six".