451606464663252 has 12 divisors (see below), whose sum is σ = 1053748417547616. Its totient is φ = 150535488221080.

The previous prime is 451606464663199. The next prime is 451606464663259. The reversal of 451606464663252 is 252366464606154.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451606464663259) 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 3 ways as a sum of consecutive naturals, for example, 18816936027624 + ... + 18816936027647.

It is an arithmetic number, because the mean of its divisors is an integer number (87812368128968).

Almost surely, 2^{451606464663252} is an apocalyptic number.

It is an amenable number.

451606464663252 is an abundant number, since it is smaller than the sum of its proper divisors (602141952884364).

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

451606464663252 is a wasteful number, since it uses less digits than its factorization.

451606464663252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37633872055278 (or 37633872055276 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 60.

The spelling of 451606464663252 in words is "four hundred fifty-one trillion, six hundred six billion, four hundred sixty-four million, six hundred sixty-three thousand, two hundred fifty-two".