667185054152 has 32 divisors (see below), whose sum is σ = 1324959988320. Its totient is φ = 313874284800.

The previous prime is 667185054149. The next prime is 667185054157. The reversal of 667185054152 is 251450581766.

It is a self number, because there is not a number n which added to its sum of digits gives 667185054152.

It is not an unprimeable number, because it can be changed into a prime (667185054157) 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, 291974 + ... + 1191477.

It is an arithmetic number, because the mean of its divisors is an integer number (41404999635).

Almost surely, 2^667185054152 is an apocalyptic number.

It is an amenable number.

667185054152 is a deficient number, since it is larger than the sum of its proper divisors (657774934168).

667185054152 is a wasteful number, since it uses less digits than its factorization.

667185054152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486781 (or 1486777 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 667185054152 in words is "six hundred sixty-seven billion, one hundred eighty-five million, fifty-four thousand, one hundred fifty-two".