161606010565119 has 4 divisors (see below), whose sum is σ = 215474680753496. Its totient is φ = 107737340376744.

The previous prime is 161606010565079. The next prime is 161606010565133. The reversal of 161606010565119 is 911565010606161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 161606010565119 - 2⁷ = 161606010564991 is a prime.

It is a super-2 number, since 2×161606010565119² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161606010565169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26934335094184 + ... + 26934335094189.

It is an arithmetic number, because the mean of its divisors is an integer number (53868670188374).

Almost surely, 2^{161606010565119} is an apocalyptic number.

161606010565119 is a deficient number, since it is larger than the sum of its proper divisors (53868670188377).

161606010565119 is an equidigital number, since it uses as much as digits as its factorization.

161606010565119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53868670188376.

The product of its (nonzero) digits is 291600, while the sum is 48.

The spelling of 161606010565119 in words is "one hundred sixty-one trillion, six hundred six billion, ten million, five hundred sixty-five thousand, one hundred nineteen".