53443165641 has 4 divisors (see below), whose sum is σ = 71257554192. Its totient is φ = 35628777092.

The previous prime is 53443165627. The next prime is 53443165651. The reversal of 53443165641 is 14656134435.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53443165641 - 2⁷ = 53443165513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53443165593 and 53443165602.

It is not an unprimeable number, because it can be changed into a prime (53443165651) 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, 8907194271 + ... + 8907194276.

It is an arithmetic number, because the mean of its divisors is an integer number (17814388548).

Almost surely, 2^53443165641 is an apocalyptic number.

It is an amenable number.

53443165641 is a deficient number, since it is larger than the sum of its proper divisors (17814388551).

53443165641 is a wasteful number, since it uses less digits than its factorization.

53443165641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17814388550.

The product of its digits is 518400, while the sum is 42.

The spelling of 53443165641 in words is "fifty-three billion, four hundred forty-three million, one hundred sixty-five thousand, six hundred forty-one".