667367104727461 has 16 divisors (see below), whose sum is σ = 704244682729728. Its totient is φ = 631157427648000.

The previous prime is 667367104727437. The next prime is 667367104727509. The reversal of 667367104727461 is 164727401763766.

It is a cyclic number.

It is not a de Polignac number, because 667367104727461 - 2⁴⁷ = 526629616372133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667367104727431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142769490 + ... + 147369811.

It is an arithmetic number, because the mean of its divisors is an integer number (44015292670608).

Almost surely, 2^{667367104727461} is an apocalyptic number.

It is an amenable number.

667367104727461 is a deficient number, since it is larger than the sum of its proper divisors (36877578002267).

667367104727461 is a wasteful number, since it uses less digits than its factorization.

667367104727461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290140452.

The product of its (nonzero) digits is 298722816, while the sum is 67.

The spelling of 667367104727461 in words is "six hundred sixty-seven trillion, three hundred sixty-seven billion, one hundred four million, seven hundred twenty-seven thousand, four hundred sixty-one".