657106016117 has 4 divisors (see below), whose sum is σ = 657109667136. Its totient is φ = 657102365100.

The previous prime is 657106016087. The next prime is 657106016141. The reversal of 657106016117 is 711610601756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 657106016117 - 2¹² = 657106012021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657106012117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540733 + ... + 1920434.

It is an arithmetic number, because the mean of its divisors is an integer number (164277416784).

Almost surely, 2^657106016117 is an apocalyptic number.

It is an amenable number.

657106016117 is a deficient number, since it is larger than the sum of its proper divisors (3651019).

657106016117 is a wasteful number, since it uses less digits than its factorization.

657106016117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3651018.

The product of its (nonzero) digits is 52920, while the sum is 41.

The spelling of 657106016117 in words is "six hundred fifty-seven billion, one hundred six million, sixteen thousand, one hundred seventeen".