125666316347 has 8 divisors (see below), whose sum is σ = 147635952240. Its totient is φ = 105454251360.

The previous prime is 125666316311. The next prime is 125666316359. The reversal of 125666316347 is 743613666521.

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

It is a cyclic number.

It is not a de Polignac number, because 125666316347 - 2¹² = 125666312251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125666316295 and 125666316304.

It is not an unprimeable number, because it can be changed into a prime (125666316847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439392572 + ... + 439392857.

It is an arithmetic number, because the mean of its divisors is an integer number (18454494030).

Almost surely, 2^125666316347 is an apocalyptic number.

125666316347 is a deficient number, since it is larger than the sum of its proper divisors (21969635893).

125666316347 is a wasteful number, since it uses less digits than its factorization.

125666316347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878785453.

The product of its digits is 3265920, while the sum is 50.

The spelling of 125666316347 in words is "one hundred twenty-five billion, six hundred sixty-six million, three hundred sixteen thousand, three hundred forty-seven".