10404150345521 has 2 divisors, whose sum is σ = 10404150345522. Its totient is φ = 10404150345520.

The previous prime is 10404150345503. The next prime is 10404150345577. The reversal of 10404150345521 is 12554305140401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6779071432225 + 3625078913296 = 2603665^2 + 1903964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10404150345521 is a prime.

It is a super-2 number, since 2×10404150345521² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10404150345221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5202075172760 + 5202075172761.

It is an arithmetic number, because the mean of its divisors is an integer number (5202075172761).

Almost surely, 2^{10404150345521} is an apocalyptic number.

It is an amenable number.

10404150345521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10404150345521 is an equidigital number, since it uses as much as digits as its factorization.

10404150345521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 10404150345521 its reverse (12554305140401), we get a palindrome (22958455485922).

The spelling of 10404150345521 in words is "ten trillion, four hundred four billion, one hundred fifty million, three hundred forty-five thousand, five hundred twenty-one".