165315200429 has 2 divisors, whose sum is σ = 165315200430. Its totient is φ = 165315200428.

The previous prime is 165315200381. The next prime is 165315200441. The reversal of 165315200429 is 924002513561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160680722500 + 4634477929 = 400850^2 + 68077^2 .

It is a cyclic number.

It is not a de Polignac number, because 165315200429 - 2¹⁶ = 165315134893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165315200392 and 165315200401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165315206429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82657600214 + 82657600215.

It is an arithmetic number, because the mean of its divisors is an integer number (82657600215).

Almost surely, 2^165315200429 is an apocalyptic number.

It is an amenable number.

165315200429 is a deficient number, since it is larger than the sum of its proper divisors (1).

165315200429 is an equidigital number, since it uses as much as digits as its factorization.

165315200429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 165315200429 in words is "one hundred sixty-five billion, three hundred fifteen million, two hundred thousand, four hundred twenty-nine".