2116241656 has 8 divisors (see below), whose sum is σ = 3967953120. Its totient is φ = 1058120824.

The previous prime is 2116241653. The next prime is 2116241657. The reversal of 2116241656 is 6561426112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×2116241656⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116241653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132265096 + ... + 132265111.

It is an arithmetic number, because the mean of its divisors is an integer number (495994140).

Almost surely, 2^2116241656 is an apocalyptic number.

It is an amenable number.

2116241656 is a deficient number, since it is larger than the sum of its proper divisors (1851711464).

2116241656 is a wasteful number, since it uses less digits than its factorization.

2116241656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264530213 (or 264530209 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 2116241656 is about 46002.6266206616. The cubic root of 2116241656 is about 1283.8720753885.

Adding to 2116241656 its reverse (6561426112), we get a palindrome (8677667768).

The spelling of 2116241656 in words is "two billion, one hundred sixteen million, two hundred forty-one thousand, six hundred fifty-six".