10162010561721 has 4 divisors (see below), whose sum is σ = 13549347415632. Its totient is φ = 6774673707812.

The previous prime is 10162010561713. The next prime is 10162010561723. The reversal of 10162010561721 is 12716501026101.

10162010561721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10162010561721 - 2³ = 10162010561713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10162010561723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693668426951 + ... + 1693668426956.

It is an arithmetic number, because the mean of its divisors is an integer number (3387336853908).

Almost surely, 2^{10162010561721} is an apocalyptic number.

It is an amenable number.

10162010561721 is a deficient number, since it is larger than the sum of its proper divisors (3387336853911).

10162010561721 is an equidigital number, since it uses as much as digits as its factorization.

10162010561721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387336853910.

The product of its (nonzero) digits is 5040, while the sum is 33.

Adding to 10162010561721 its reverse (12716501026101), we get a palindrome (22878511587822).

The spelling of 10162010561721 in words is "ten trillion, one hundred sixty-two billion, ten million, five hundred sixty-one thousand, seven hundred twenty-one".