6161016666 has 24 divisors (see below), whose sum is σ = 14333794560. Its totient is φ = 1760290392.

The previous prime is 6161016661. The next prime is 6161016671. The reversal of 6161016666 is 6666101616.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6161016661) and next prime (6161016671).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6161016661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10477626 + ... + 10478213.

It is an arithmetic number, because the mean of its divisors is an integer number (597241440).

Almost surely, 2^6161016666 is an apocalyptic number.

6161016666 is an abundant number, since it is smaller than the sum of its proper divisors (8172777894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6161016666 is a wasteful number, since it uses less digits than its factorization.

6161016666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20955858 (or 20955851 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 6161016666 is about 78492.1439763242. The cubic root of 6161016666 is about 1833.2321339254.

The spelling of 6161016666 in words is "six billion, one hundred sixty-one million, sixteen thousand, six hundred sixty-six".