16670614111261 has 24 divisors (see below), whose sum is σ = 18387295044440. Its totient is φ = 15102741962880.

The previous prime is 16670614111247. The next prime is 16670614111271. The reversal of 16670614111261 is 16211141607661.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3305374888761 + 13365239222500 = 1818069^2 + 3655850^2 .

It is not a de Polignac number, because 16670614111261 - 2²¹ = 16670612014109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16670614111271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51189235 + ... + 51513871.

Almost surely, 2^{16670614111261} is an apocalyptic number.

16670614111261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16670614111261 is a deficient number, since it is larger than the sum of its proper divisors (1716680933179).

16670614111261 is a wasteful number, since it uses less digits than its factorization.

16670614111261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326125 (or 326114 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 16670614111261 in words is "sixteen trillion, six hundred seventy billion, six hundred fourteen million, one hundred eleven thousand, two hundred sixty-one".