667017417488 has 10 divisors (see below), whose sum is σ = 1292346246414. Its totient is φ = 333508708736.

The previous prime is 667017417449. The next prime is 667017417533. The reversal of 667017417488 is 884714710766.

It can be written as a sum of positive squares in only one way, i.e., 377521767184 + 289495650304 = 614428^2 + 538048^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20844294281 + ... + 20844294312.

Almost surely, 2^667017417488 is an apocalyptic number.

It is an amenable number.

667017417488 is a deficient number, since it is larger than the sum of its proper divisors (625328828926).

667017417488 is a wasteful number, since it uses less digits than its factorization.

667017417488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41688588601 (or 41688588595 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 59.

The spelling of 667017417488 in words is "six hundred sixty-seven billion, seventeen million, four hundred seventeen thousand, four hundred eighty-eight".