161315310071 has 8 divisors (see below), whose sum is σ = 166896316080. Its totient is φ = 155735531392.

The previous prime is 161315310031. The next prime is 161315310103. The reversal of 161315310071 is 170013513161.

It is a happy number.

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 161315310071 - 2²² = 161311115767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161315310031) 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, 35330 + ... + 569103.

It is an arithmetic number, because the mean of its divisors is an integer number (20862039510).

Almost surely, 2^161315310071 is an apocalyptic number.

161315310071 is a deficient number, since it is larger than the sum of its proper divisors (5581006009).

161315310071 is an equidigital number, since it uses as much as digits as its factorization.

161315310071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613665.

The product of its (nonzero) digits is 1890, while the sum is 29.

The spelling of 161315310071 in words is "one hundred sixty-one billion, three hundred fifteen million, three hundred ten thousand, seventy-one".