64717100641 has 8 divisors (see below), whose sum is σ = 68529166560. Its totient is φ = 60905610048.

The previous prime is 64717100633. The next prime is 64717100653. The reversal of 64717100641 is 14600171746.

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

It is not a de Polignac number, because 64717100641 - 2³ = 64717100633 is a prime.

It is a super-2 number, since 2×64717100641² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64717100641.

It is not an unprimeable number, because it can be changed into a prime (64717100621) 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, 99550 + ... + 373288.

It is an arithmetic number, because the mean of its divisors is an integer number (8566145820).

Almost surely, 2^64717100641 is an apocalyptic number.

It is an amenable number.

64717100641 is a deficient number, since it is larger than the sum of its proper divisors (3812065919).

64717100641 is a wasteful number, since it uses less digits than its factorization.

64717100641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287663.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 64717100641 in words is "sixty-four billion, seven hundred seventeen million, one hundred thousand, six hundred forty-one".