13505554144 has 12 divisors (see below), whose sum is σ = 26589059784. Its totient is φ = 6752777056.

The previous prime is 13505554133. The next prime is 13505554177. The reversal of 13505554144 is 44145550531.

It is a super-3 number, since 3×13505554144³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211024252 + ... + 211024315.

It is an arithmetic number, because the mean of its divisors is an integer number (2215754982).

Almost surely, 2^13505554144 is an apocalyptic number.

It is an amenable number.

13505554144 is a deficient number, since it is larger than the sum of its proper divisors (13083505640).

13505554144 is an equidigital number, since it uses as much as digits as its factorization.

13505554144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422048577 (or 422048569 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 13505554144 in words is "thirteen billion, five hundred five million, five hundred fifty-four thousand, one hundred forty-four".