11451330646465 has 4 divisors (see below), whose sum is σ = 13741596775764. Its totient is φ = 9161064517168.

The previous prime is 11451330646463. The next prime is 11451330646499. The reversal of 11451330646465 is 56464603315411.

11451330646465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4751950930609 + 6699379715856 = 2179897^2 + 2588316^2 .

It is a cyclic number.

It is not a de Polignac number, because 11451330646465 - 2¹ = 11451330646463 is a prime.

It is a super-2 number, since 2×11451330646465² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11451330646463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145133064642 + ... + 1145133064651.

It is an arithmetic number, because the mean of its divisors is an integer number (3435399193941).

Almost surely, 2^{11451330646465} is an apocalyptic number.

It is an amenable number.

11451330646465 is a deficient number, since it is larger than the sum of its proper divisors (2290266129299).

11451330646465 is an equidigital number, since it uses as much as digits as its factorization.

11451330646465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290266129298.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 11451330646465 in words is "eleven trillion, four hundred fifty-one billion, three hundred thirty million, six hundred forty-six thousand, four hundred sixty-five".