668180193151 has 8 divisors (see below), whose sum is σ = 668629286624. Its totient is φ = 667731224160.

The previous prime is 668180193113. The next prime is 668180193157. The reversal of 668180193151 is 151391081866.

It is a happy number.

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 668180193151 - 2³³ = 659590258559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668180193095 and 668180193104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668180193157) 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, 12305281 + ... + 12359461.

It is an arithmetic number, because the mean of its divisors is an integer number (83578660828).

Almost surely, 2^668180193151 is an apocalyptic number.

668180193151 is a deficient number, since it is larger than the sum of its proper divisors (449093473).

668180193151 is a wasteful number, since it uses less digits than its factorization.

668180193151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62241.

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 668180193151 in words is "six hundred sixty-eight billion, one hundred eighty million, one hundred ninety-three thousand, one hundred fifty-one".