10521716641 has 8 divisors (see below), whose sum is σ = 10586620800. Its totient is φ = 10456986960.

The previous prime is 10521716633. The next prime is 10521716651. The reversal of 10521716641 is 14661712501.

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 10521716641 - 2³ = 10521716633 is a prime.

It is a super-3 number, since 3×10521716641³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10521716597 and 10521716606.

It is not an unprimeable number, because it can be changed into a prime (10521716651) 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, 78406 + ... + 164896.

It is an arithmetic number, because the mean of its divisors is an integer number (1323327600).

Almost surely, 2^10521716641 is an apocalyptic number.

It is an amenable number.

10521716641 is a deficient number, since it is larger than the sum of its proper divisors (64904159).

10521716641 is an equidigital number, since it uses as much as digits as its factorization.

10521716641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87239.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 10521716641 in words is "ten billion, five hundred twenty-one million, seven hundred sixteen thousand, six hundred forty-one".