667327550 has 12 divisors (see below), whose sum is σ = 1241229336. Its totient is φ = 266931000.

The previous prime is 667327547. The next prime is 667327559. The reversal of 667327550 is 55723766.

It is a junction number, because it is equal to n+sod(n) for n = 667327498 and 667327507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667327559) 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 5 ways as a sum of consecutive naturals, for example, 6673226 + ... + 6673325.

It is an arithmetic number, because the mean of its divisors is an integer number (103435778).

Almost surely, 2^667327550 is an apocalyptic number.

667327550 is a deficient number, since it is larger than the sum of its proper divisors (573901786).

667327550 is a wasteful number, since it uses less digits than its factorization.

667327550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13346563 (or 13346558 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 41.

The square root of 667327550 is about 25832.6837552741. The cubic root of 667327550 is about 873.8690367858.

The spelling of 667327550 in words is "six hundred sixty-seven million, three hundred twenty-seven thousand, five hundred fifty".