165302257421107 has 2 divisors, whose sum is σ = 165302257421108. Its totient is φ = 165302257421106.

The previous prime is 165302257421053. The next prime is 165302257421129. The reversal of 165302257421107 is 701124752203561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165302257421107 - 2¹⁵ = 165302257388339 is a prime.

It is not a weakly prime, because it can be changed into another prime (165302257421177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82651128710553 + 82651128710554.

It is an arithmetic number, because the mean of its divisors is an integer number (82651128710554).

Almost surely, 2^{165302257421107} is an apocalyptic number.

165302257421107 is a deficient number, since it is larger than the sum of its proper divisors (1).

165302257421107 is an equidigital number, since it uses as much as digits as its factorization.

165302257421107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 165302257421107 in words is "one hundred sixty-five trillion, three hundred two billion, two hundred fifty-seven million, four hundred twenty-one thousand, one hundred seven".