667016471 has 16 divisors (see below), whose sum is σ = 774800640. Its totient is φ = 567492480.

The previous prime is 667016461. The next prime is 667016477. The reversal of 667016471 is 174610766.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667016471 is a prime.

It is a super-3 number, since 3×667016471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667016477) 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 15 ways as a sum of consecutive naturals, for example, 23510 + ... + 43436.

It is an arithmetic number, because the mean of its divisors is an integer number (48425040).

Almost surely, 2^667016471 is an apocalyptic number.

667016471 is a deficient number, since it is larger than the sum of its proper divisors (107784169).

667016471 is a wasteful number, since it uses less digits than its factorization.

667016471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20134.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 667016471 is about 25826.6620181548. The cubic root of 667016471 is about 873.7332291366.

The spelling of 667016471 in words is "six hundred sixty-seven million, sixteen thousand, four hundred seventy-one".