13555312513542 has 48 divisors (see below), whose sum is σ = 31110733182672. Its totient is φ = 4250834887680.

The previous prime is 13555312513517. The next prime is 13555312513553. The reversal of 13555312513542 is 24531521355531.

13555312513542 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 53 + 1 + 2 + 51 + 3 + 542 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8719059 + ... + 10155422.

It is an arithmetic number, because the mean of its divisors is an integer number (648140274639).

Almost surely, 2^{13555312513542} is an apocalyptic number.

13555312513542 is an abundant number, since it is smaller than the sum of its proper divisors (17555420669130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13555312513542 is a wasteful number, since it uses less digits than its factorization.

13555312513542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18876853 (or 18876850 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 45.

The spelling of 13555312513542 in words is "thirteen trillion, five hundred fifty-five billion, three hundred twelve million, five hundred thirteen thousand, five hundred forty-two".