54130643665 has 16 divisors (see below), whose sum is σ = 74240087040. Its totient is φ = 37116267840.

The previous prime is 54130643663. The next prime is 54130643669. The reversal of 54130643665 is 56634603145.

It is not a de Polignac number, because 54130643665 - 2¹ = 54130643663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54130643663) 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, 1338816 + ... + 1378654.

It is an arithmetic number, because the mean of its divisors is an integer number (4640005440).

Almost surely, 2^54130643665 is an apocalyptic number.

It is an amenable number.

54130643665 is a deficient number, since it is larger than the sum of its proper divisors (20109443375).

54130643665 is a wasteful number, since it uses less digits than its factorization.

54130643665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78672.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 54130643665 in words is "fifty-four billion, one hundred thirty million, six hundred forty-three thousand, six hundred sixty-five".