13555120534 has 8 divisors (see below), whose sum is σ = 20334295800. Its totient is φ = 6777021936.

The previous prime is 13555120531. The next prime is 13555120549. The reversal of 13555120534 is 43502155531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13555120534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13555120531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236919 + ... + 288514.

It is an arithmetic number, because the mean of its divisors is an integer number (2541786975).

Almost surely, 2^13555120534 is an apocalyptic number.

13555120534 is a deficient number, since it is larger than the sum of its proper divisors (6779175266).

13555120534 is a wasteful number, since it uses less digits than its factorization.

13555120534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538334.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 13555120534 in words is "thirteen billion, five hundred fifty-five million, one hundred twenty thousand, five hundred thirty-four".