161362086601 has 9 divisors (see below), whose sum is σ = 161966484903. Its totient is φ = 160759939800.

The previous prime is 161362086577. The next prime is 161362086629. The reversal of 161362086601 is 106680263161.

The square root of 161362086601 is 401699.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 118438534201 + 42923552400 = 344149^2 + 207180^2 .

It is not a de Polignac number, because 161362086601 - 2¹¹ = 161362084553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161362056601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 140192376 + ... + 140193526.

Almost surely, 2^161362086601 is an apocalyptic number.

161362086601 is the 401699-th square number.

161362086601 is the 200850-th centered octagonal number.

It is an amenable number.

161362086601 is a deficient number, since it is larger than the sum of its proper divisors (604398302).

161362086601 is an frugal number, since it uses more digits than its factorization.

161362086601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 161362086601 in words is "one hundred sixty-one billion, three hundred sixty-two million, eighty-six thousand, six hundred one".