11451151616465 has 24 divisors (see below), whose sum is σ = 15104392785384. Its totient is φ = 8327983910400.

The previous prime is 11451151616459. The next prime is 11451151616467. The reversal of 11451151616465 is 56461615115411.

It can be written as a sum of positive squares in 4 ways, for example, as 5344895481409 + 6106256135056 = 2311903^2 + 2471084^2 .

It is not a de Polignac number, because 11451151616465 - 2³² = 11446856649169 is a prime.

It is a super-2 number, since 2×11451151616465² (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 (11451151616467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61908659 + ... + 62093351.

It is an arithmetic number, because the mean of its divisors is an integer number (629349699391).

Almost surely, 2^{11451151616465} is an apocalyptic number.

It is an amenable number.

11451151616465 is a deficient number, since it is larger than the sum of its proper divisors (3653241168919).

11451151616465 is a wasteful number, since it uses less digits than its factorization.

11451151616465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287201 (or 287190 counting only the distinct ones).

The product of its digits is 432000, while the sum is 47.

The spelling of 11451151616465 in words is "eleven trillion, four hundred fifty-one billion, one hundred fifty-one million, six hundred sixteen thousand, four hundred sixty-five".