745666511 has 2 divisors, whose sum is σ = 745666512. Its totient is φ = 745666510.

The previous prime is 745666499. The next prime is 745666553. The reversal of 745666511 is 115666547.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 745666511 - 2¹⁴ = 745650127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745666561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372833255 + 372833256.

It is an arithmetic number, because the mean of its divisors is an integer number (372833256).

Almost surely, 2^745666511 is an apocalyptic number.

745666511 is a deficient number, since it is larger than the sum of its proper divisors (1).

745666511 is an equidigital number, since it uses as much as digits as its factorization.

745666511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 41.

The square root of 745666511 is about 27306.8949351624. The cubic root of 745666511 is about 906.8070326011.

The spelling of 745666511 in words is "seven hundred forty-five million, six hundred sixty-six thousand, five hundred eleven".