101666406612216 has 32 divisors (see below), whose sum is σ = 254166867192960. Its totient is φ = 33888688782432.

The previous prime is 101666406612187. The next prime is 101666406612227. The reversal of 101666406612216 is 612216604666101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392541 + ... + 14264883.

It is an arithmetic number, because the mean of its divisors is an integer number (7942714599780).

Almost surely, 2^{101666406612216} is an apocalyptic number.

It is an amenable number.

101666406612216 is an abundant number, since it is smaller than the sum of its proper divisors (152500460580744).

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

101666406612216 is a wasteful number, since it uses less digits than its factorization.

101666406612216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14177715 (or 14177711 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 101666406612216 in words is "one hundred one trillion, six hundred sixty-six billion, four hundred six million, six hundred twelve thousand, two hundred sixteen".