10066712521 has 8 divisors (see below), whose sum is σ = 10234629000. Its totient is φ = 9900134400.

The previous prime is 10066712489. The next prime is 10066712527. The reversal of 10066712521 is 12521766001.

It can be written as a sum of positive squares in 4 ways, for example, as 977187600 + 9089524921 = 31260^2 + 95339^2 .

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 10066712521 - 2⁵ = 10066712489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10066712527) 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, 319416 + ... + 349513.

It is an arithmetic number, because the mean of its divisors is an integer number (1279328625).

Almost surely, 2^10066712521 is an apocalyptic number.

It is an amenable number.

10066712521 is a deficient number, since it is larger than the sum of its proper divisors (167916479).

10066712521 is a wasteful number, since it uses less digits than its factorization.

10066712521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669179.

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 10066712521 in words is "ten billion, sixty-six million, seven hundred twelve thousand, five hundred twenty-one".