205253212431630 has 64 divisors (see below), whose sum is σ = 537415125601536. Its totient is φ = 49756049280000.

The previous prime is 205253212431481. The next prime is 205253212431649. The reversal of 205253212431630 is 36134212352502.

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, 7268676 + ... + 21525335.

It is an arithmetic number, because the mean of its divisors is an integer number (8397111337524).

Almost surely, 2^{205253212431630} is an apocalyptic number.

205253212431630 is an abundant number, since it is smaller than the sum of its proper divisors (332161913169906).

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

205253212431630 is a wasteful number, since it uses less digits than its factorization.

205253212431630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28815633.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 205253212431630 in words is "two hundred five trillion, two hundred fifty-three billion, two hundred twelve million, four hundred thirty-one thousand, six hundred thirty".