668848146338143 has 8 divisors (see below), whose sum is σ = 704085323811200. Its totient is φ = 633614433210648.

The previous prime is 668848146338111. The next prime is 668848146338249. The reversal of 668848146338143 is 341833641848866.

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 668848146338143 - 2⁵ = 668848146338111 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 (668848146335143) 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, 865690083 + ... + 866462356.

It is an arithmetic number, because the mean of its divisors is an integer number (88010665476400).

Almost surely, 2^{668848146338143} is an apocalyptic number.

668848146338143 is a deficient number, since it is larger than the sum of its proper divisors (35237177473057).

668848146338143 is a wasteful number, since it uses less digits than its factorization.

668848146338143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732172781.

The product of its digits is 1528823808, while the sum is 73.

The spelling of 668848146338143 in words is "six hundred sixty-eight trillion, eight hundred forty-eight billion, one hundred forty-six million, three hundred thirty-eight thousand, one hundred forty-three".