1601524611913 has 2 divisors, whose sum is σ = 1601524611914. Its totient is φ = 1601524611912.

The previous prime is 1601524611899. The next prime is 1601524611971. The reversal of 1601524611913 is 3191164251061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1166199128649 + 435325483264 = 1079907^2 + 659792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601524611913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1601527611913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800762305956 + 800762305957.

It is an arithmetic number, because the mean of its divisors is an integer number (800762305957).

Almost surely, 2^{1601524611913} is an apocalyptic number.

It is an amenable number.

1601524611913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601524611913 is an equidigital number, since it uses as much as digits as its factorization.

1601524611913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

Adding to 1601524611913 its reverse (3191164251061), we get a palindrome (4792688862974).

The spelling of 1601524611913 in words is "one trillion, six hundred one billion, five hundred twenty-four million, six hundred eleven thousand, nine hundred thirteen".