668011452351 has 16 divisors (see below), whose sum is σ = 918974453760. Its totient is φ = 431407435680.

The previous prime is 668011452323. The next prime is 668011452377. The reversal of 668011452351 is 153254110866.

It is not a de Polignac number, because 668011452351 - 2⁷ = 668011452223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668011452391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26578135 + ... + 26603256.

It is an arithmetic number, because the mean of its divisors is an integer number (57435903360).

Almost surely, 2^668011452351 is an apocalyptic number.

668011452351 is a deficient number, since it is larger than the sum of its proper divisors (250963001409).

668011452351 is a wasteful number, since it uses less digits than its factorization.

668011452351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53181526.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 668011452351 in words is "six hundred sixty-eight billion, eleven million, four hundred fifty-two thousand, three hundred fifty-one".