2105236232656 has 20 divisors (see below), whose sum is σ = 4155855489252. Its totient is φ = 1032757396736.

The previous prime is 2105236232651. The next prime is 2105236232669. The reversal of 2105236232656 is 6562326325012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1814409000000 + 290827232656 = 1347000^2 + 539284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105236232651) 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, 1241294101 + ... + 1241295796.

Almost surely, 2^{2105236232656} is an apocalyptic number.

It is an amenable number.

2105236232656 is a deficient number, since it is larger than the sum of its proper divisors (2050619256596).

2105236232656 is a wasteful number, since it uses less digits than its factorization.

2105236232656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482589958 (or 2482589952 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 2105236232656 in words is "two trillion, one hundred five billion, two hundred thirty-six million, two hundred thirty-two thousand, six hundred fifty-six".