1616838386161 has 8 divisors (see below), whose sum is σ = 1641721193280. Its totient is φ = 1592136545328.

The previous prime is 1616838386029. The next prime is 1616838386203.

1616838386161 is nontrivially palindromic in base 10.

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 1616838386161 - 2³⁵ = 1582478647793 is a prime.

It is a super-2 number, since 2×1616838386161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1616838386096 and 1616838386105.

It is not an unprimeable number, because it can be changed into a prime (1616838686161) 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, 45223566 + ... + 45259303.

It is an arithmetic number, because the mean of its divisors is an integer number (205215149160).

Almost surely, 2^{1616838386161} is an apocalyptic number.

It is an amenable number.

1616838386161 is a deficient number, since it is larger than the sum of its proper divisors (24882807119).

1616838386161 is a wasteful number, since it uses less digits than its factorization.

1616838386161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90483143.

The product of its digits is 5971968, while the sum is 58.

The spelling of 1616838386161 in words is "one trillion, six hundred sixteen billion, eight hundred thirty-eight million, three hundred eighty-six thousand, one hundred sixty-one".