54518344381545 has 16 divisors (see below), whose sum is σ = 95159292011712. Its totient is φ = 26433136669760.

The previous prime is 54518344381541. The next prime is 54518344381573.

54518344381545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54518344381545 - 2² = 54518344381541 is a prime.

It is a super-3 number, since 3×54518344381545³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (54518344381541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165207104022 + ... + 165207104351.

It is an arithmetic number, because the mean of its divisors is an integer number (5947455750732).

Almost surely, 2^{54518344381545} is an apocalyptic number.

54518344381545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54518344381545 is a deficient number, since it is larger than the sum of its proper divisors (40640947630167).

54518344381545 is a wasteful number, since it uses less digits than its factorization.

54518344381545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330414208392.

The product of its digits is 92160000, while the sum is 60.

The spelling of 54518344381545 in words is "fifty-four trillion, five hundred eighteen billion, three hundred forty-four million, three hundred eighty-one thousand, five hundred forty-five".