64248055143 has 4 divisors (see below), whose sum is σ = 85664073528. Its totient is φ = 42832036760.

The previous prime is 64248055127. The next prime is 64248055163. The reversal of 64248055143 is 34155084246.

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

It is a cyclic number.

It is not a de Polignac number, because 64248055143 - 2⁴ = 64248055127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64248055095 and 64248055104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64248055163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10708009188 + ... + 10708009193.

It is an arithmetic number, because the mean of its divisors is an integer number (21416018382).

Almost surely, 2^64248055143 is an apocalyptic number.

64248055143 is a deficient number, since it is larger than the sum of its proper divisors (21416018385).

64248055143 is a wasteful number, since it uses less digits than its factorization.

64248055143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21416018384.

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 64248055143 in words is "sixty-four billion, two hundred forty-eight million, fifty-five thousand, one hundred forty-three".