668682170101 has 8 divisors (see below), whose sum is σ = 729477731808. Its totient is φ = 607887654000.

The previous prime is 668682170081. The next prime is 668682170147. The reversal of 668682170101 is 101071286866.

668682170101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 668682170101 - 2³⁷ = 531243216629 is a prime.

It is a super-2 number, since 2×668682170101² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668682174101) 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, 1746171 + ... + 2094391.

It is an arithmetic number, because the mean of its divisors is an integer number (91184716476).

Almost surely, 2^668682170101 is an apocalyptic number.

It is an amenable number.

668682170101 is a deficient number, since it is larger than the sum of its proper divisors (60795561707).

668682170101 is a wasteful number, since it uses less digits than its factorization.

668682170101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522803.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 668682170101 in words is "six hundred sixty-eight billion, six hundred eighty-two million, one hundred seventy thousand, one hundred one".