13555204534245 has 64 divisors (see below), whose sum is σ = 24442003611648. Its totient is φ = 6355321440000.

The previous prime is 13555204534243. The next prime is 13555204534247. The reversal of 13555204534245 is 54243540255531.

It is an interprime number because it is at equal distance from previous prime (13555204534243) and next prime (13555204534247).

It is not a de Polignac number, because 13555204534245 - 2¹ = 13555204534243 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 13555204534194 and 13555204534203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13555204534243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5636134 + ... + 7673096.

It is an arithmetic number, because the mean of its divisors is an integer number (381906306432).

Almost surely, 2^{13555204534245} is an apocalyptic number.

13555204534245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13555204534245 is a deficient number, since it is larger than the sum of its proper divisors (10886799077403).

13555204534245 is a wasteful number, since it uses less digits than its factorization.

13555204534245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038314.

The product of its (nonzero) digits is 7200000, while the sum is 48.

Adding to 13555204534245 its reverse (54243540255531), we get a palindrome (67798744789776).

The spelling of 13555204534245 in words is "thirteen trillion, five hundred fifty-five billion, two hundred four million, five hundred thirty-four thousand, two hundred forty-five".