106666804072 has 16 divisors (see below), whose sum is σ = 200050056900. Its totient is φ = 53320122240.

The previous prime is 106666804051. The next prime is 106666804091. The reversal of 106666804072 is 270408666601.

It can be written as a sum of positive squares in 2 ways, for example, as 104992848676 + 1673955396 = 324026^2 + 40914^2 .

It is a super-2 number, since 2×106666804072² (a number of 23 digits) contains 22 as substring.

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, 1625797 + ... + 1690132.

Almost surely, 2^106666804072 is an apocalyptic number.

It is an amenable number.

106666804072 is a deficient number, since it is larger than the sum of its proper divisors (93383252828).

106666804072 is a wasteful number, since it uses less digits than its factorization.

106666804072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319956 (or 3319952 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 106666804072 in words is "one hundred six billion, six hundred sixty-six million, eight hundred four thousand, seventy-two".