2656100212 has 72 divisors (see below), whose sum is σ = 5184889920. Its totient is φ = 1186531200.

The previous prime is 2656100147. The next prime is 2656100221. The reversal of 2656100212 is 2120016562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2994033 + ... + 2994919.

It is an arithmetic number, because the mean of its divisors is an integer number (72012360).

Almost surely, 2^2656100212 is an apocalyptic number.

It is an amenable number.

2656100212 is a deficient number, since it is larger than the sum of its proper divisors (2528789708).

2656100212 is a wasteful number, since it uses less digits than its factorization.

2656100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2656100212 is about 51537.3671426859. The cubic root of 2656100212 is about 1384.8885315634. Note that the first 3 decimals are identical.

Adding to 2656100212 its reverse (2120016562), we get a palindrome (4776116774).

The spelling of 2656100212 in words is "two billion, six hundred fifty-six million, one hundred thousand, two hundred twelve".