165151506019 has 2 divisors, whose sum is σ = 165151506020. Its totient is φ = 165151506018.

The previous prime is 165151505983. The next prime is 165151506031. The reversal of 165151506019 is 910605151561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165151506019 - 2²⁷ = 165017288291 is a prime.

It is a super-2 number, since 2×165151506019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (165151501019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82575753009 + 82575753010.

It is an arithmetic number, because the mean of its divisors is an integer number (82575753010).

Almost surely, 2^165151506019 is an apocalyptic number.

165151506019 is a deficient number, since it is larger than the sum of its proper divisors (1).

165151506019 is an equidigital number, since it uses as much as digits as its factorization.

165151506019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 40.

The spelling of 165151506019 in words is "one hundred sixty-five billion, one hundred fifty-one million, five hundred six thousand, nineteen".