11151670151521 has 2 divisors, whose sum is σ = 11151670151522. Its totient is φ = 11151670151520.

The previous prime is 11151670151473. The next prime is 11151670151549. The reversal of 11151670151521 is 12515107615111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10264238326225 + 887431825296 = 3203785^2 + 942036^2 .

It is a cyclic number.

It is not a de Polignac number, because 11151670151521 - 2⁹ = 11151670151009 is a prime.

It is a super-2 number, since 2×11151670151521² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11151670121521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5575835075760 + 5575835075761.

It is an arithmetic number, because the mean of its divisors is an integer number (5575835075761).

Almost surely, 2^{11151670151521} is an apocalyptic number.

It is an amenable number.

11151670151521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11151670151521 is an equidigital number, since it uses as much as digits as its factorization.

11151670151521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10500, while the sum is 37.

Adding to 11151670151521 its reverse (12515107615111), we get a palindrome (23666777766632).

The spelling of 11151670151521 in words is "eleven trillion, one hundred fifty-one billion, six hundred seventy million, one hundred fifty-one thousand, five hundred twenty-one".