1603540452077 has 2 divisors, whose sum is σ = 1603540452078. Its totient is φ = 1603540452076.

The previous prime is 1603540452013. The next prime is 1603540452091. The reversal of 1603540452077 is 7702540453061.

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., 1598166242596 + 5374209481 = 1264186^2 + 73309^2 .

It is a cyclic number.

It is not a de Polignac number, because 1603540452077 - 2⁶ = 1603540452013 is a prime.

It is a super-2 number, since 2×1603540452077² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1603540452097) 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, 801770226038 + 801770226039.

It is an arithmetic number, because the mean of its divisors is an integer number (801770226039).

Almost surely, 2^{1603540452077} is an apocalyptic number.

It is an amenable number.

1603540452077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1603540452077 is an equidigital number, since it uses as much as digits as its factorization.

1603540452077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 1603540452077 in words is "one trillion, six hundred three billion, five hundred forty million, four hundred fifty-two thousand, seventy-seven".