107666120545 has 16 divisors (see below), whose sum is σ = 130124384208. Its totient is φ = 85517752320.

The previous prime is 107666120539. The next prime is 107666120557. The reversal of 107666120545 is 545021666701.

It can be written as a sum of positive squares in 8 ways, for example, as 26400075361 + 81266045184 = 162481^2 + 285072^2 .

It is not a de Polignac number, because 107666120545 - 2⁹ = 107666120033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461977 + ... + 654793.

It is an arithmetic number, because the mean of its divisors is an integer number (8132774013).

Almost surely, 2^107666120545 is an apocalyptic number.

It is an amenable number.

107666120545 is a deficient number, since it is larger than the sum of its proper divisors (22458263663).

107666120545 is a wasteful number, since it uses less digits than its factorization.

107666120545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193620.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 107666120545 in words is "one hundred seven billion, six hundred sixty-six million, one hundred twenty thousand, five hundred forty-five".