2660553728923 has 2 divisors, whose sum is σ = 2660553728924. Its totient is φ = 2660553728922.

The previous prime is 2660553728831. The next prime is 2660553728927. The reversal of 2660553728923 is 3298273550662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2660553728923 is a prime.

It is a super-2 number, since 2×2660553728923² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2660553728927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330276864461 + 1330276864462.

It is an arithmetic number, because the mean of its divisors is an integer number (1330276864462).

Almost surely, 2^{2660553728923} is an apocalyptic number.

2660553728923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660553728923 is an equidigital number, since it uses as much as digits as its factorization.

2660553728923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32659200, while the sum is 58.

The spelling of 2660553728923 in words is "two trillion, six hundred sixty billion, five hundred fifty-three million, seven hundred twenty-eight thousand, nine hundred twenty-three".