667216076461 has 16 divisors (see below), whose sum is σ = 728868974400. Its totient is φ = 605729728000.

The previous prime is 667216076453. The next prime is 667216076497. The reversal of 667216076461 is 164670612766.

It is a cyclic number.

It is not a de Polignac number, because 667216076461 - 2³ = 667216076453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667216076399 and 667216076408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667216079461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45477435 + ... + 45492103.

It is an arithmetic number, because the mean of its divisors is an integer number (45554310900).

Almost surely, 2^667216076461 is an apocalyptic number.

It is an amenable number.

667216076461 is a deficient number, since it is larger than the sum of its proper divisors (61652897939).

667216076461 is a wasteful number, since it uses less digits than its factorization.

667216076461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20060.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 667216076461 in words is "six hundred sixty-seven billion, two hundred sixteen million, seventy-six thousand, four hundred sixty-one".