2155958595512 has 16 divisors (see below), whose sum is σ = 4043045237400. Its totient is φ = 1077813198880.

The previous prime is 2155958595463. The next prime is 2155958595517.

It is a happy number.

2155958595512 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155958595517) 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, 20707187 + ... + 20811042.

Almost surely, 2^{2155958595512} is an apocalyptic number.

It is an amenable number.

2155958595512 is a deficient number, since it is larger than the sum of its proper divisors (1887086641888).

2155958595512 is a wasteful number, since it uses less digits than its factorization.

2155958595512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41524726 (or 41524722 counting only the distinct ones).

The product of its digits is 40500000, while the sum is 62.

The spelling of 2155958595512 in words is "two trillion, one hundred fifty-five billion, nine hundred fifty-eight million, five hundred ninety-five thousand, five hundred twelve".