66015246040741 has 2 divisors, whose sum is σ = 66015246040742. Its totient is φ = 66015246040740.

The previous prime is 66015246040693. The next prime is 66015246040781. The reversal of 66015246040741 is 14704064251066.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65993120668225 + 22125372516 = 8123615^2 + 148746^2 .

It is a cyclic number.

It is not a de Polignac number, because 66015246040741 - 2⁷ = 66015246040613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66015246040691 and 66015246040700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66015246040781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33007623020370 + 33007623020371.

It is an arithmetic number, because the mean of its divisors is an integer number (33007623020371).

Almost surely, 2^{66015246040741} is an apocalyptic number.

It is an amenable number.

66015246040741 is a deficient number, since it is larger than the sum of its proper divisors (1).

66015246040741 is an equidigital number, since it uses as much as digits as its factorization.

66015246040741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 66015246040741 in words is "sixty-six trillion, fifteen billion, two hundred forty-six million, forty thousand, seven hundred forty-one".