451111621066411 has 8 divisors (see below), whose sum is σ = 461602874216000. Its totient is φ = 440620380881352.

The previous prime is 451111621066397. The next prime is 451111621066543. The reversal of 451111621066411 is 114660126111154.

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 a de Polignac number, because none of the positive numbers 2^k-451111621066411 is a prime.

It is a super-2 number, since 2×451111621066411² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451111621036411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132631096 + ... + 135989818.

It is an arithmetic number, because the mean of its divisors is an integer number (57700359277000).

Almost surely, 2^{451111621066411} is an apocalyptic number.

451111621066411 is a deficient number, since it is larger than the sum of its proper divisors (10491253149589).

451111621066411 is a wasteful number, since it uses less digits than its factorization.

451111621066411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6482265.

The product of its (nonzero) digits is 34560, while the sum is 40.

Adding to 451111621066411 its reverse (114660126111154), we get a palindrome (565771747177565).

The spelling of 451111621066411 in words is "four hundred fifty-one trillion, one hundred eleven billion, six hundred twenty-one million, sixty-six thousand, four hundred eleven".