106666670615650 has 24 divisors (see below), whose sum is σ = 198404570530260. Its totient is φ = 42665686916160.

The previous prime is 106666670615579. The next prime is 106666670615693. The reversal of 106666670615650 is 56516076666601.

It can be written as a sum of positive squares in 6 ways, for example, as 15227578476009 + 91439092139641 = 3902253^2 + 9562379^2 .

It is a super-2 number, since 2×106666670615650² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22335645 + ... + 26687344.

Almost surely, 2^{106666670615650} is an apocalyptic number.

106666670615650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

106666670615650 is a deficient number, since it is larger than the sum of its proper divisors (91737899914610).

106666670615650 is a wasteful number, since it uses less digits than its factorization.

106666670615650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49066518 (or 49066513 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 61.

The spelling of 106666670615650 in words is "one hundred six trillion, six hundred sixty-six billion, six hundred seventy million, six hundred fifteen thousand, six hundred fifty".