54561455416545 has 96 divisors (see below), whose sum is σ = 109670499434496. Its totient is φ = 22673550049920.

The previous prime is 54561455416543. The next prime is 54561455416577.

54561455416545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54561455416545 - 2¹ = 54561455416543 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (54561455416543) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 231405384 + ... + 231641046.

It is an arithmetic number, because the mean of its divisors is an integer number (1142401035776).

Almost surely, 2^{54561455416545} is an apocalyptic number.

54561455416545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54561455416545 is an abundant number, since it is smaller than the sum of its proper divisors (55109044017951).

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

54561455416545 is a wasteful number, since it uses less digits than its factorization.

54561455416545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253923 (or 253912 counting only the distinct ones).

The product of its digits is 144000000, while the sum is 60.

The spelling of 54561455416545 in words is "fifty-four trillion, five hundred sixty-one billion, four hundred fifty-five million, four hundred sixteen thousand, five hundred forty-five".