2155614165512 has 16 divisors (see below), whose sum is σ = 4045913500860. Its totient is φ = 1076703898624.

The previous prime is 2155614165499. The next prime is 2155614165541.

2155614165512 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 1685723109316 + 469891056196 = 1298354^2 + 685486^2 .

It is a super-2 number, since 2×2155614165512² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137889713 + ... + 137905344.

Almost surely, 2^{2155614165512} is an apocalyptic number.

It is an amenable number.

2155614165512 is a deficient number, since it is larger than the sum of its proper divisors (1890299335348).

2155614165512 is a wasteful number, since it uses less digits than its factorization.

2155614165512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275796040 (or 275796036 counting only the distinct ones).

The product of its digits is 360000, while the sum is 44.

The spelling of 2155614165512 in words is "two trillion, one hundred fifty-five billion, six hundred fourteen million, one hundred sixty-five thousand, five hundred twelve".