667536956 has 24 divisors (see below), whose sum is σ = 1234248960. Its totient is φ = 315025200.

The previous prime is 667536953. The next prime is 667537001. The reversal of 667536956 is 659635766.

It is a junction number, because it is equal to n+sod(n) for n = 667536898 and 667536907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667536953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4391 + ... + 36801.

It is an arithmetic number, because the mean of its divisors is an integer number (51427040).

Almost surely, 2^667536956 is an apocalyptic number.

It is an amenable number.

667536956 is a deficient number, since it is larger than the sum of its proper divisors (566712004).

667536956 is a wasteful number, since it uses less digits than its factorization.

667536956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32705 (or 32703 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 53.

The square root of 667536956 is about 25836.7365586291. The cubic root of 667536956 is about 873.9604333231.

The spelling of 667536956 in words is "six hundred sixty-seven million, five hundred thirty-six thousand, nine hundred fifty-six".