165101116651 has 2 divisors, whose sum is σ = 165101116652. Its totient is φ = 165101116650.

The previous prime is 165101116643. The next prime is 165101116667. The reversal of 165101116651 is 156611101561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165101116651 - 2³ = 165101116643 is a prime.

It is not a weakly prime, because it can be changed into another prime (165101113651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82550558325 + 82550558326.

It is an arithmetic number, because the mean of its divisors is an integer number (82550558326).

Almost surely, 2^165101116651 is an apocalyptic number.

165101116651 is a deficient number, since it is larger than the sum of its proper divisors (1).

165101116651 is an equidigital number, since it uses as much as digits as its factorization.

165101116651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 34.

The spelling of 165101116651 in words is "one hundred sixty-five billion, one hundred one million, one hundred sixteen thousand, six hundred fifty-one".