64516423271 has 8 divisors (see below), whose sum is σ = 64635409920. Its totient is φ = 64397479608.

The previous prime is 64516423267. The next prime is 64516423319. The reversal of 64516423271 is 17232461546.

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 64516423271 - 2² = 64516423267 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 (64516423201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5322800 + ... + 5334906.

It is an arithmetic number, because the mean of its divisors is an integer number (8079426240).

Almost surely, 2^64516423271 is an apocalyptic number.

64516423271 is a deficient number, since it is larger than the sum of its proper divisors (118986649).

64516423271 is a wasteful number, since it uses less digits than its factorization.

64516423271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21493.

The product of its digits is 241920, while the sum is 41.

The spelling of 64516423271 in words is "sixty-four billion, five hundred sixteen million, four hundred twenty-three thousand, two hundred seventy-one".