6161100666 has 32 divisors (see below), whose sum is σ = 14694801408. Its totient is φ = 1683778800.

The previous prime is 6161100637. The next prime is 6161100677. The reversal of 6161100666 is 6660011616.

It is a super-2 number, since 2×6161100666² = 75918322833171287112, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3188010 + ... + 3189941.

It is an arithmetic number, because the mean of its divisors is an integer number (459212544).

Almost surely, 2^6161100666 is an apocalyptic number.

6161100666 is an abundant number, since it is smaller than the sum of its proper divisors (8533700742).

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

6161100666 is a wasteful number, since it uses less digits than its factorization.

6161100666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377986.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 6161100666 is about 78492.6790598970. The cubic root of 6161100666 is about 1833.2404653858.

The spelling of 6161100666 in words is "six billion, one hundred sixty-one million, one hundred thousand, six hundred sixty-six".