161606010565075 has 24 divisors (see below), whose sum is σ = 210948447096000. Its totient is φ = 122474494611360.

The previous prime is 161606010565019. The next prime is 161606010565079. The reversal of 161606010565075 is 570565010606161.

It is not a de Polignac number, because 161606010565075 - 2¹³ = 161606010556883 is a prime.

It is a super-2 number, since 2×161606010565075² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161606010565079) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1842576 + ... + 18072274.

It is an arithmetic number, because the mean of its divisors is an integer number (8789518629000).

Almost surely, 2^{161606010565075} is an apocalyptic number.

161606010565075 is a deficient number, since it is larger than the sum of its proper divisors (49342436530925).

161606010565075 is a wasteful number, since it uses less digits than its factorization.

161606010565075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16250691 (or 16250686 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 161606010565075 in words is "one hundred sixty-one trillion, six hundred six billion, ten million, five hundred sixty-five thousand, seventy-five".