161626216256119 has 8 divisors (see below), whose sum is σ = 161649498228480. Its totient is φ = 161602935551736.

The previous prime is 161626216256117. The next prime is 161626216256143. The reversal of 161626216256119 is 911652612626161.

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 161626216256119 - 2¹ = 161626216256117 is a prime.

It is a super-2 number, since 2×161626216256119² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161626216256119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161626216256117) 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, 271188352 + ... + 271783690.

It is an arithmetic number, because the mean of its divisors is an integer number (20206187278560).

Almost surely, 2^{161626216256119} is an apocalyptic number.

161626216256119 is a deficient number, since it is larger than the sum of its proper divisors (23281972361).

161626216256119 is an equidigital number, since it uses as much as digits as its factorization.

161626216256119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633989.

The product of its digits is 2799360, while the sum is 55.

The spelling of 161626216256119 in words is "one hundred sixty-one trillion, six hundred twenty-six billion, two hundred sixteen million, two hundred fifty-six thousand, one hundred nineteen".