2155445156163 has 16 divisors (see below), whose sum is σ = 3277056890016. Its totient is φ = 1248402624000.

The previous prime is 2155445156159. The next prime is 2155445156171. The reversal of 2155445156163 is 3616515445512.

It is not a de Polignac number, because 2155445156163 - 2² = 2155445156159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2155445156063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1625523588 + ... + 1625524913.

It is an arithmetic number, because the mean of its divisors is an integer number (204816055626).

Almost surely, 2^{2155445156163} is an apocalyptic number.

2155445156163 is a deficient number, since it is larger than the sum of its proper divisors (1121611733853).

2155445156163 is a wasteful number, since it uses less digits than its factorization.

2155445156163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251048534.

The product of its digits is 2160000, while the sum is 48.

The spelling of 2155445156163 in words is "two trillion, one hundred fifty-five billion, four hundred forty-five million, one hundred fifty-six thousand, one hundred sixty-three".