16166819708461 has 8 divisors (see below), whose sum is σ = 16213710470400. Its totient is φ = 16119939268560.

The previous prime is 16166819708341. The next prime is 16166819708563. The reversal of 16166819708461 is 16480791866161.

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 16166819708461 - 2¹¹ = 16166819706413 is a prime.

It is a super-2 number, since 2×16166819708461² (a number of 27 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 = 16166819708393 and 16166819708402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16166819708161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562060 + ... + 5713978.

It is an arithmetic number, because the mean of its divisors is an integer number (2026713808800).

Almost surely, 2^{16166819708461} is an apocalyptic number.

It is an amenable number.

16166819708461 is a deficient number, since it is larger than the sum of its proper divisors (46890761939).

16166819708461 is an equidigital number, since it uses as much as digits as its factorization.

16166819708461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161019.

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 16166819708461 in words is "sixteen trillion, one hundred sixty-six billion, eight hundred nineteen million, seven hundred eight thousand, four hundred sixty-one".