2155504011536 has 10 divisors (see below), whose sum is σ = 4176289022382. Its totient is φ = 1077752005760.

The previous prime is 2155504011527. The next prime is 2155504011553. The reversal of 2155504011536 is 6351104055512.

It can be written as a sum of positive squares in only one way, i.e., 1929932208400 + 225571803136 = 1389220^2 + 474944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2155504011536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67359500345 + ... + 67359500376.

Almost surely, 2^{2155504011536} is an apocalyptic number.

It is an amenable number.

2155504011536 is a deficient number, since it is larger than the sum of its proper divisors (2020785010846).

2155504011536 is a wasteful number, since it uses less digits than its factorization.

2155504011536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134719000729 (or 134719000723 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 2155504011536 in words is "two trillion, one hundred fifty-five billion, five hundred four million, eleven thousand, five hundred thirty-six".