2125611616 has 24 divisors (see below), whose sum is σ = 4223197440. Its totient is φ = 1053053568.

The previous prime is 2125611601. The next prime is 2125611617. The reversal of 2125611616 is 6161165212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125611617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301216 + ... + 308191.

It is an arithmetic number, because the mean of its divisors is an integer number (175966560).

Almost surely, 2^2125611616 is an apocalyptic number.

It is an amenable number.

2125611616 is a deficient number, since it is larger than the sum of its proper divisors (2097585824).

2125611616 is a wasteful number, since it uses less digits than its factorization.

2125611616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609526 (or 609518 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 2125611616 is about 46104.3557161360. The cubic root of 2125611616 is about 1285.7641275728.

Adding to 2125611616 its reverse (6161165212), we get a palindrome (8286776828).

The spelling of 2125611616 in words is "two billion, one hundred twenty-five million, six hundred eleven thousand, six hundred sixteen".