451601653621330 has 16 divisors (see below), whose sum is σ = 824018359759704. Its totient is φ = 178166131839360.

The previous prime is 451601653621303. The next prime is 451601653621361. The reversal of 451601653621330 is 33126356106154.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 436572315741969 + 15029337879361 = 20894313^2 + 3876769^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309316200381 + ... + 309316201840.

Almost surely, 2^{451601653621330} is an apocalyptic number.

451601653621330 is a deficient number, since it is larger than the sum of its proper divisors (372416706138374).

451601653621330 is a wasteful number, since it uses less digits than its factorization.

451601653621330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618632402301.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 451601653621330 in words is "four hundred fifty-one trillion, six hundred one billion, six hundred fifty-three million, six hundred twenty-one thousand, three hundred thirty".