10164573821 has 2 divisors, whose sum is σ = 10164573822. Its totient is φ = 10164573820.

The previous prime is 10164573817. The next prime is 10164573829. The reversal of 10164573821 is 12837546101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10162857721 + 1716100 = 100811^2 + 1310^2 .

It is an emirp because it is prime and its reverse (12837546101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10164573821 - 2² = 10164573817 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10164573829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082286910 + 5082286911.

It is an arithmetic number, because the mean of its divisors is an integer number (5082286911).

Almost surely, 2^10164573821 is an apocalyptic number.

It is an amenable number.

10164573821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10164573821 is an equidigital number, since it uses as much as digits as its factorization.

10164573821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 10164573821 in words is "ten billion, one hundred sixty-four million, five hundred seventy-three thousand, eight hundred twenty-one".