6667040704061 has 2 divisors, whose sum is σ = 6667040704062. Its totient is φ = 6667040704060.

The previous prime is 6667040704007. The next prime is 6667040704073. The reversal of 6667040704061 is 1604070407666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6662619252025 + 4421452036 = 2581205^2 + 66494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6667040704061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6667040703997 and 6667040704015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6667040704081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333520352030 + 3333520352031.

It is an arithmetic number, because the mean of its divisors is an integer number (3333520352031).

Almost surely, 2^{6667040704061} is an apocalyptic number.

It is an amenable number.

6667040704061 is a deficient number, since it is larger than the sum of its proper divisors (1).

6667040704061 is an equidigital number, since it uses as much as digits as its factorization.

6667040704061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 6667040704061 in words is "six trillion, six hundred sixty-seven billion, forty million, seven hundred four thousand, sixty-one".