165107511433 has 2 divisors, whose sum is σ = 165107511434. Its totient is φ = 165107511432.

The previous prime is 165107511407. The next prime is 165107511449. The reversal of 165107511433 is 334115701561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102840793344 + 62266718089 = 320688^2 + 249533^2 .

It is an emirp because it is prime and its reverse (334115701561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165107511433 - 2⁹ = 165107510921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165107511392 and 165107511401.

It is not a weakly prime, because it can be changed into another prime (165107511403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82553755716 + 82553755717.

It is an arithmetic number, because the mean of its divisors is an integer number (82553755717).

Almost surely, 2^165107511433 is an apocalyptic number.

It is an amenable number.

165107511433 is a deficient number, since it is larger than the sum of its proper divisors (1).

165107511433 is an equidigital number, since it uses as much as digits as its factorization.

165107511433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 165107511433 in words is "one hundred sixty-five billion, one hundred seven million, five hundred eleven thousand, four hundred thirty-three".