2111253616 has 20 divisors (see below), whose sum is σ = 4151609032. Its totient is φ = 1039870656.

The previous prime is 2111253607. The next prime is 2111253629. The reversal of 2111253616 is 6163521112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983655 + ... + 985798.

Almost surely, 2^2111253616 is an apocalyptic number.

It is an amenable number.

2111253616 is a deficient number, since it is larger than the sum of its proper divisors (2040355416).

2111253616 is a wasteful number, since it uses less digits than its factorization.

2111253616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969528 (or 1969522 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 2111253616 is about 45948.3799061512. The cubic root of 2111253616 is about 1282.8625745249.

Adding to 2111253616 its reverse (6163521112), we get a palindrome (8274774728).

The spelling of 2111253616 in words is "two billion, one hundred eleven million, two hundred fifty-three thousand, six hundred sixteen".