54636231665999 has 4 divisors (see below), whose sum is σ = 54637595463936. Its totient is φ = 54634867868064.

The previous prime is 54636231665989. The next prime is 54636231666047. The reversal of 54636231665999 is 99956613263645.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54636231665999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54636231665959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681838874 + ... + 681918999.

It is an arithmetic number, because the mean of its divisors is an integer number (13659398865984).

Almost surely, 2^{54636231665999} is an apocalyptic number.

54636231665999 is a deficient number, since it is larger than the sum of its proper divisors (1363797937).

54636231665999 is a wasteful number, since it uses less digits than its factorization.

54636231665999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363797936.

The product of its digits is 1700611200, while the sum is 74.

The spelling of 54636231665999 in words is "fifty-four trillion, six hundred thirty-six billion, two hundred thirty-one million, six hundred sixty-five thousand, nine hundred ninety-nine".