165302257421479 has 2 divisors, whose sum is σ = 165302257421480. Its totient is φ = 165302257421478.

The previous prime is 165302257421333. The next prime is 165302257421503. The reversal of 165302257421479 is 974124752203561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165302257421479 - 2³⁷ = 165164818468007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165302257427479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82651128710739 + 82651128710740.

It is an arithmetic number, because the mean of its divisors is an integer number (82651128710740).

Almost surely, 2^{165302257421479} is an apocalyptic number.

165302257421479 is a deficient number, since it is larger than the sum of its proper divisors (1).

165302257421479 is an equidigital number, since it uses as much as digits as its factorization.

165302257421479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 165302257421479 in words is "one hundred sixty-five trillion, three hundred two billion, two hundred fifty-seven million, four hundred twenty-one thousand, four hundred seventy-nine".