667233126740 has 12 divisors (see below), whose sum is σ = 1401189566196. Its totient is φ = 266893250688.

The previous prime is 667233126733. The next prime is 667233126743. The reversal of 667233126740 is 47621332766.

It can be written as a sum of positive squares in 2 ways, for example, as 149642090896 + 517591035844 = 386836^2 + 719438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667233126743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16680828149 + ... + 16680828188.

It is an arithmetic number, because the mean of its divisors is an integer number (116765797183).

Almost surely, 2^667233126740 is an apocalyptic number.

It is an amenable number.

667233126740 is an abundant number, since it is smaller than the sum of its proper divisors (733956439456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667233126740 is a wasteful number, since it uses less digits than its factorization.

667233126740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33361656346 (or 33361656344 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 47.

The spelling of 667233126740 in words is "six hundred sixty-seven billion, two hundred thirty-three million, one hundred twenty-six thousand, seven hundred forty".