667216377741 has 16 divisors (see below), whose sum is σ = 902272020480. Its totient is φ = 438487497840.

The previous prime is 667216377691. The next prime is 667216377769. The reversal of 667216377741 is 147773612766.

It is not a de Polignac number, because 667216377741 - 2⁶ = 667216377677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667216377781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1422076 + ... + 1832138.

It is an arithmetic number, because the mean of its divisors is an integer number (56392001280).

Almost surely, 2^667216377741 is an apocalyptic number.

It is an amenable number.

667216377741 is a deficient number, since it is larger than the sum of its proper divisors (235055642739).

667216377741 is a wasteful number, since it uses less digits than its factorization.

667216377741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417776.

The product of its digits is 12446784, while the sum is 57.

The spelling of 667216377741 in words is "six hundred sixty-seven billion, two hundred sixteen million, three hundred seventy-seven thousand, seven hundred forty-one".