13423540435555 has 64 divisors (see below), whose sum is σ = 16840105390080. Its totient is φ = 10260569088000.

The previous prime is 13423540435453. The next prime is 13423540435577. The reversal of 13423540435555 is 55553404532431.

It is not a de Polignac number, because 13423540435555 - 2²⁷ = 13423406217827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13423540435499 and 13423540435508.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8813880024 + ... + 8813881546.

It is an arithmetic number, because the mean of its divisors is an integer number (263126646720).

Almost surely, 2^{13423540435555} is an apocalyptic number.

13423540435555 is a deficient number, since it is larger than the sum of its proper divisors (3416564954525).

13423540435555 is a wasteful number, since it uses less digits than its factorization.

13423540435555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292.

The product of its (nonzero) digits is 10800000, while the sum is 49.

Adding to 13423540435555 its reverse (55553404532431), we get a palindrome (68976944967986).

The spelling of 13423540435555 in words is "thirteen trillion, four hundred twenty-three billion, five hundred forty million, four hundred thirty-five thousand, five hundred fifty-five".