675644161707617 has 32 divisors (see below), whose sum is σ = 717042453120000. Its totient is φ = 634839276085056.

The previous prime is 675644161707601. The next prime is 675644161707643. The reversal of 675644161707617 is 716707161446576.

It is a cyclic number.

It is not a de Polignac number, because 675644161707617 - 2⁴ = 675644161707601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (675644161707667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11134697684 + ... + 11134758362.

It is an arithmetic number, because the mean of its divisors is an integer number (22407576660000).

Almost surely, 2^{675644161707617} is an apocalyptic number.

It is an amenable number.

675644161707617 is a deficient number, since it is larger than the sum of its proper divisors (41398291412383).

675644161707617 is a wasteful number, since it uses less digits than its factorization.

675644161707617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65013.

The product of its (nonzero) digits is 248935680, while the sum is 68.

It can be divided in two parts, 675644 and 161707617, that added together give a palindrome (162383261).

The spelling of 675644161707617 in words is "six hundred seventy-five trillion, six hundred forty-four billion, one hundred sixty-one million, seven hundred seven thousand, six hundred seventeen".