1663045753 has 2 divisors, whose sum is σ = 1663045754. Its totient is φ = 1663045752.

The previous prime is 1663045729. The next prime is 1663045759. The reversal of 1663045753 is 3575403661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092170304 + 570875449 = 33048^2 + 23893^2 .

It is an emirp because it is prime and its reverse (3575403661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1663045753 - 2⁵ = 1663045721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1663045759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831522876 + 831522877.

It is an arithmetic number, because the mean of its divisors is an integer number (831522877).

Almost surely, 2^1663045753 is an apocalyptic number.

It is an amenable number.

1663045753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1663045753 is an equidigital number, since it uses as much as digits as its factorization.

1663045753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 1663045753 is about 40780.4579792822. The cubic root of 1663045753 is about 1184.7718653802.

The spelling of 1663045753 in words is "one billion, six hundred sixty-three million, forty-five thousand, seven hundred fifty-three".