451145344022 has 32 divisors (see below), whose sum is σ = 697938223680. Its totient is φ = 218551512960.

The previous prime is 451145343989. The next prime is 451145344051. The reversal of 451145344022 is 220443541154.

It is a happy number.

It is a super-2 number, since 2×451145344022² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52169303 + ... + 52177949.

It is an arithmetic number, because the mean of its divisors is an integer number (21810569490).

Almost surely, 2^451145344022 is an apocalyptic number.

451145344022 is a deficient number, since it is larger than the sum of its proper divisors (246792879658).

451145344022 is a wasteful number, since it uses less digits than its factorization.

451145344022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11576.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 451145344022 its reverse (220443541154), we get a palindrome (671588885176).

The spelling of 451145344022 in words is "four hundred fifty-one billion, one hundred forty-five million, three hundred forty-four thousand, twenty-two".