11456616465665 has 8 divisors (see below), whose sum is σ = 15711931152960. Its totient is φ = 7855965576432.

The previous prime is 11456616465653. The next prime is 11456616465667. The reversal of 11456616465665 is 56656461665411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11456616465665 - 2¹² = 11456616461569 is a prime.

It is a super-2 number, since 2×11456616465665² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11456616465598 and 11456616465607.

It is not an unprimeable number, because it can be changed into a prime (11456616465667) 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 in 7 ways as a sum of consecutive naturals, for example, 163665949475 + ... + 163665949544.

It is an arithmetic number, because the mean of its divisors is an integer number (1963991394120).

Almost surely, 2^{11456616465665} is an apocalyptic number.

It is an amenable number.

11456616465665 is a deficient number, since it is larger than the sum of its proper divisors (4255314687295).

11456616465665 is an equidigital number, since it uses as much as digits as its factorization.

11456616465665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327331899031.

The product of its digits is 93312000, while the sum is 62.

The spelling of 11456616465665 in words is "eleven trillion, four hundred fifty-six billion, six hundred sixteen million, four hundred sixty-five thousand, six hundred sixty-five".