2155540534234 has 16 divisors (see below), whose sum is σ = 3293714340000. Its totient is φ = 1057697995024.

The previous prime is 2155540534229. The next prime is 2155540534253. The reversal of 2155540534234 is 4324350455512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15490609 + ... + 15629140.

It is an arithmetic number, because the mean of its divisors is an integer number (205857146250).

Almost surely, 2^{2155540534234} is an apocalyptic number.

2155540534234 is a deficient number, since it is larger than the sum of its proper divisors (1138173805766).

2155540534234 is a wasteful number, since it uses less digits than its factorization.

2155540534234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31120397.

The product of its (nonzero) digits is 1440000, while the sum is 43.

Adding to 2155540534234 its reverse (4324350455512), we get a palindrome (6479890989746).

The spelling of 2155540534234 in words is "two trillion, one hundred fifty-five billion, five hundred forty million, five hundred thirty-four thousand, two hundred thirty-four".