61673366166 has 8 divisors (see below), whose sum is σ = 123346732344. Its totient is φ = 20557788720.

The previous prime is 61673366107. The next prime is 61673366177. The reversal of 61673366166 is 66166337616.

It is a sphenic number, since it is the product of 3 distinct primes.

61673366166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5139447175 + ... + 5139447186.

It is an arithmetic number, because the mean of its divisors is an integer number (15418341543).

Almost surely, 2^61673366166 is an apocalyptic number.

61673366166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61673366166 is a wasteful number, since it uses less digits than its factorization.

61673366166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278894366.

The product of its digits is 2939328, while the sum is 51.

The spelling of 61673366166 in words is "sixty-one billion, six hundred seventy-three million, three hundred sixty-six thousand, one hundred sixty-six".