667371301344631 has 32 divisors (see below), whose sum is σ = 727490049850368. Its totient is φ = 608553344424960.

The previous prime is 667371301344593. The next prime is 667371301344703. The reversal of 667371301344631 is 136443103173766.

It is a cyclic number.

It is not a de Polignac number, because 667371301344631 - 2¹⁵ = 667371301311863 is a prime.

It is a super-2 number, since 2×667371301344631² (a number of 30 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 (667371301354631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7304246910 + ... + 7304338276.

It is an arithmetic number, because the mean of its divisors is an integer number (22734064057824).

Almost surely, 2^{667371301344631} is an apocalyptic number.

667371301344631 is a deficient number, since it is larger than the sum of its proper divisors (60118748505737).

667371301344631 is a wasteful number, since it uses less digits than its factorization.

667371301344631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112351.

The product of its (nonzero) digits is 13716864, while the sum is 55.

The spelling of 667371301344631 in words is "six hundred sixty-seven trillion, three hundred seventy-one billion, three hundred one million, three hundred forty-four thousand, six hundred thirty-one".