667502237367431 has 16 divisors (see below), whose sum is σ = 707651320147200. Its totient is φ = 627865813770048.

The previous prime is 667502237367421. The next prime is 667502237367443. The reversal of 667502237367431 is 134763732205766.

It is a de Polignac number, because none of the positive numbers 2^k-667502237367431 is a prime.

It is a super-2 number, since 2×667502237367431² (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 (667502237367421) 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 15 ways as a sum of consecutive naturals, for example, 149473790 + ... + 153874683.

It is an arithmetic number, because the mean of its divisors is an integer number (44228207509200).

Almost surely, 2^{667502237367431} is an apocalyptic number.

667502237367431 is a deficient number, since it is larger than the sum of its proper divisors (40149082779769).

667502237367431 is a wasteful number, since it uses less digits than its factorization.

667502237367431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303349318.

The product of its (nonzero) digits is 160030080, while the sum is 62.

The spelling of 667502237367431 in words is "six hundred sixty-seven trillion, five hundred two billion, two hundred thirty-seven million, three hundred sixty-seven thousand, four hundred thirty-one".