12416454365551 has 4 divisors (see below), whose sum is σ = 12423893824600. Its totient is φ = 12409014906504.

The previous prime is 12416454365527. The next prime is 12416454365647. The reversal of 12416454365551 is 15556345461421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12416454365551 - 2¹¹ = 12416454363503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12416454366551) 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, 3719727021 + ... + 3719730358.

It is an arithmetic number, because the mean of its divisors is an integer number (3105973456150).

Almost surely, 2^{12416454365551} is an apocalyptic number.

12416454365551 is a deficient number, since it is larger than the sum of its proper divisors (7439459049).

12416454365551 is an equidigital number, since it uses as much as digits as its factorization.

12416454365551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7439459048.

The product of its digits is 8640000, while the sum is 52.

The spelling of 12416454365551 in words is "twelve trillion, four hundred sixteen billion, four hundred fifty-four million, three hundred sixty-five thousand, five hundred fifty-one".