165530016103 has 12 divisors (see below), whose sum is σ = 173334689640. Its totient is φ = 158017365792.

The previous prime is 165530016077. The next prime is 165530016121. The reversal of 165530016103 is 301610035561.

It is not a de Polignac number, because 165530016103 - 2³⁷ = 28091062631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165530014103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1068133 + ... + 1213246.

It is an arithmetic number, because the mean of its divisors is an integer number (14444557470).

Almost surely, 2^165530016103 is an apocalyptic number.

165530016103 is a deficient number, since it is larger than the sum of its proper divisors (7804673537).

165530016103 is an equidigital number, since it uses as much as digits as its factorization.

165530016103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281506 (or 2281469 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 165530016103 in words is "one hundred sixty-five billion, five hundred thirty million, sixteen thousand, one hundred three".