6667366740401 has 16 divisors (see below), whose sum is σ = 7180723327680. Its totient is φ = 6167516805120.

The previous prime is 6667366740337. The next prime is 6667366740553. The reversal of 6667366740401 is 1040476637666.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6667366740401 - 2⁶ = 6667366740337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6667366740701) 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, 4107041 + ... + 5495681.

It is an arithmetic number, because the mean of its divisors is an integer number (448795207980).

Almost surely, 2^{6667366740401} is an apocalyptic number.

It is an amenable number.

6667366740401 is a deficient number, since it is larger than the sum of its proper divisors (513356587279).

6667366740401 is a wasteful number, since it uses less digits than its factorization.

6667366740401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393504.

The product of its (nonzero) digits is 18289152, while the sum is 56.

The spelling of 6667366740401 in words is "six trillion, six hundred sixty-seven billion, three hundred sixty-six million, seven hundred forty thousand, four hundred one".