2056210662155 has 24 divisors (see below), whose sum is σ = 2679513303600. Its totient is φ = 1514081462400.

The previous prime is 2056210662127. The next prime is 2056210662157. The reversal of 2056210662155 is 5512660126502.

It is not a de Polignac number, because 2056210662155 - 2⁶ = 2056210662091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2056210662157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3191321 + ... + 3781130.

It is an arithmetic number, because the mean of its divisors is an integer number (111646387650).

Almost surely, 2^{2056210662155} is an apocalyptic number.

2056210662155 is a deficient number, since it is larger than the sum of its proper divisors (623302641445).

2056210662155 is a wasteful number, since it uses less digits than its factorization.

2056210662155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972831 (or 6972818 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

Adding to 2056210662155 its reverse (5512660126502), we get a palindrome (7568870788657).

The spelling of 2056210662155 in words is "two trillion, fifty-six billion, two hundred ten million, six hundred sixty-two thousand, one hundred fifty-five".