2670566689477 has 2 divisors, whose sum is σ = 2670566689478. Its totient is φ = 2670566689476.

The previous prime is 2670566689471. The next prime is 2670566689493. The reversal of 2670566689477 is 7749866650762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2456159721796 + 214406967681 = 1567214^2 + 463041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2670566689477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2670566689471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1335283344738 + 1335283344739.

It is an arithmetic number, because the mean of its divisors is an integer number (1335283344739).

Almost surely, 2^{2670566689477} is an apocalyptic number.

It is an amenable number.

2670566689477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2670566689477 is an equidigital number, since it uses as much as digits as its factorization.

2670566689477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280240640, while the sum is 73.

The spelling of 2670566689477 in words is "two trillion, six hundred seventy billion, five hundred sixty-six million, six hundred eighty-nine thousand, four hundred seventy-seven".