161107355641 has 8 divisors (see below), whose sum is σ = 170890524360. Its totient is φ = 151358216448.

The previous prime is 161107355603. The next prime is 161107355683. The reversal of 161107355641 is 146553701161.

It can be written as a sum of positive squares in 4 ways, for example, as 1110555625 + 159996800016 = 33325^2 + 399996^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161107355641 - 2¹³ = 161107347449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161107355594 and 161107355603.

It is not an unprimeable number, because it can be changed into a prime (161107365641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8497626 + ... + 8516563.

It is an arithmetic number, because the mean of its divisors is an integer number (21361315545).

Almost surely, 2^161107355641 is an apocalyptic number.

It is an amenable number.

161107355641 is a deficient number, since it is larger than the sum of its proper divisors (9783168719).

161107355641 is a wasteful number, since it uses less digits than its factorization.

161107355641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17014763.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 161107355641 in words is "one hundred sixty-one billion, one hundred seven million, three hundred fifty-five thousand, six hundred forty-one".