451001220224632 has 128 divisors (see below), whose sum is σ = 1057125799411200. Its totient is φ = 175242389875200.

The previous prime is 451001220224587. The next prime is 451001220224699. The reversal of 451001220224632 is 236422022100154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432483483 + ... + 433525045.

It is an arithmetic number, because the mean of its divisors is an integer number (8258795307900).

Almost surely, 2^{451001220224632} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451001220224632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528562899705600).

451001220224632 is an abundant number, since it is smaller than the sum of its proper divisors (606124579186568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451001220224632 is a wasteful number, since it uses less digits than its factorization.

451001220224632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043477 (or 1043473 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 451001220224632 its reverse (236422022100154), we get a palindrome (687423242324786).

The spelling of 451001220224632 in words is "four hundred fifty-one trillion, one billion, two hundred twenty million, two hundred twenty-four thousand, six hundred thirty-two".