54685688658645 has 16 divisors (see below), whose sum is σ = 95451383840832. Its totient is φ = 26514273288960.

The previous prime is 54685688658611. The next prime is 54685688658647.

54685688658645 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54685688658645 - 2⁸ = 54685688658389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54685688658647) 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, 165714207892 + ... + 165714208221.

It is an arithmetic number, because the mean of its divisors is an integer number (5965711490052).

Almost surely, 2^{54685688658645} is an apocalyptic number.

54685688658645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54685688658645 is a deficient number, since it is larger than the sum of its proper divisors (40765695182187).

54685688658645 is a wasteful number, since it uses less digits than its factorization.

54685688658645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331428416132.

The product of its digits is 53084160000, while the sum is 84.

The spelling of 54685688658645 in words is "fifty-four trillion, six hundred eighty-five billion, six hundred eighty-eight million, six hundred fifty-eight thousand, six hundred forty-five".