10016621171 has 2 divisors, whose sum is σ = 10016621172. Its totient is φ = 10016621170.

The previous prime is 10016621159. The next prime is 10016621239. The reversal of 10016621171 is 17112661001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10016621171 is a prime.

It is a super-2 number, since 2×10016621171² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10016621171.

It is not a weakly prime, because it can be changed into another prime (10016620171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5008310585 + 5008310586.

It is an arithmetic number, because the mean of its divisors is an integer number (5008310586).

Almost surely, 2^10016621171 is an apocalyptic number.

10016621171 is a deficient number, since it is larger than the sum of its proper divisors (1).

10016621171 is an equidigital number, since it uses as much as digits as its factorization.

10016621171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 10016621171 in words is "ten billion, sixteen million, six hundred twenty-one thousand, one hundred seventy-one".