161116524125 has 8 divisors (see below), whose sum is σ = 201073422264. Its totient is φ = 128893219200.

The previous prime is 161116524077. The next prime is 161116524133. The reversal of 161116524125 is 521425611161.

It can be written as a sum of positive squares in 4 ways, for example, as 894847396 + 160221676729 = 29914^2 + 400277^2 .

It is a de Polignac number, because none of the positive numbers 2^k-161116524125 is a prime.

It is a super-2 number, since 2×161116524125² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644465972 + ... + 644466221.

It is an arithmetic number, because the mean of its divisors is an integer number (25134177783).

Almost surely, 2^161116524125 is an apocalyptic number.

It is an amenable number.

161116524125 is a deficient number, since it is larger than the sum of its proper divisors (39956898139).

161116524125 is an equidigital number, since it uses as much as digits as its factorization.

161116524125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288932208 (or 1288932198 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The spelling of 161116524125 in words is "one hundred sixty-one billion, one hundred sixteen million, five hundred twenty-four thousand, one hundred twenty-five".