10165656731 has 2 divisors, whose sum is σ = 10165656732. Its totient is φ = 10165656730.

The previous prime is 10165656691. The next prime is 10165656749. The reversal of 10165656731 is 13765656101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10165656731 - 2¹⁰ = 10165655707 is a prime.

It is a super-2 number, since 2×10165656731² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10165653731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082828365 + 5082828366.

It is an arithmetic number, because the mean of its divisors is an integer number (5082828366).

Almost surely, 2^10165656731 is an apocalyptic number.

10165656731 is a deficient number, since it is larger than the sum of its proper divisors (1).

10165656731 is an equidigital number, since it uses as much as digits as its factorization.

10165656731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 10165656731 in words is "ten billion, one hundred sixty-five million, six hundred fifty-six thousand, seven hundred thirty-one".