2640023551603 has 2 divisors, whose sum is σ = 2640023551604. Its totient is φ = 2640023551602.

The previous prime is 2640023551559. The next prime is 2640023551621. The reversal of 2640023551603 is 3061553200462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640023551603 is a prime.

It is not a weakly prime, because it can be changed into another prime (2640023551303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320011775801 + 1320011775802.

It is an arithmetic number, because the mean of its divisors is an integer number (1320011775802).

Almost surely, 2^{2640023551603} is an apocalyptic number.

2640023551603 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640023551603 is an equidigital number, since it uses as much as digits as its factorization.

2640023551603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 2640023551603 in words is "two trillion, six hundred forty billion, twenty-three million, five hundred fifty-one thousand, six hundred three".