660944259383 has 2 divisors, whose sum is σ = 660944259384. Its totient is φ = 660944259382.

The previous prime is 660944259337. The next prime is 660944259403. The reversal of 660944259383 is 383952449066.

660944259383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660944259383 - 2¹⁴ = 660944242999 is a prime.

It is a super-2 number, since 2×660944259383² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660944259583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330472129691 + 330472129692.

It is an arithmetic number, because the mean of its divisors is an integer number (330472129692).

Almost surely, 2^660944259383 is an apocalyptic number.

660944259383 is a deficient number, since it is larger than the sum of its proper divisors (1).

660944259383 is an equidigital number, since it uses as much as digits as its factorization.

660944259383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33592320, while the sum is 59.

The spelling of 660944259383 in words is "six hundred sixty billion, nine hundred forty-four million, two hundred fifty-nine thousand, three hundred eighty-three".