53644664537141 has 8 divisors (see below), whose sum is σ = 54399021018840. Its totient is φ = 52890835030272.

The previous prime is 53644664537099. The next prime is 53644664537173. The reversal of 53644664537141 is 14173546644635.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13535622288241 + 40109042248900 = 3679079^2 + 6333170^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53644664537141 - 2¹⁰ = 53644664536117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644664507141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131538680 + ... + 131945873.

It is an arithmetic number, because the mean of its divisors is an integer number (6799877627355).

Almost surely, 2^{53644664537141} is an apocalyptic number.

It is an amenable number.

53644664537141 is a deficient number, since it is larger than the sum of its proper divisors (754356481699).

53644664537141 is a wasteful number, since it uses less digits than its factorization.

53644664537141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263487415.

The product of its digits is 87091200, while the sum is 59.

The spelling of 53644664537141 in words is "fifty-three trillion, six hundred forty-four billion, six hundred sixty-four million, five hundred thirty-seven thousand, one hundred forty-one".