10161665727 has 4 divisors (see below), whose sum is σ = 13548887640. Its totient is φ = 6774443816.

The previous prime is 10161665713. The next prime is 10161665737. The reversal of 10161665727 is 72756616101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10161665727 - 2⁴ = 10161665711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10161665737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693610952 + ... + 1693610957.

It is an arithmetic number, because the mean of its divisors is an integer number (3387221910).

Almost surely, 2^10161665727 is an apocalyptic number.

10161665727 is a deficient number, since it is larger than the sum of its proper divisors (3387221913).

10161665727 is an equidigital number, since it uses as much as digits as its factorization.

10161665727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387221912.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 10161665727 in words is "ten billion, one hundred sixty-one million, six hundred sixty-five thousand, seven hundred twenty-seven".