205102149184252 has 24 divisors (see below), whose sum is σ = 380043497937600. Its totient is φ = 96518333276160.

The previous prime is 205102149184217. The next prime is 205102149184271. The reversal of 205102149184252 is 252481941201502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15883677 + ... + 25738987.

It is an arithmetic number, because the mean of its divisors is an integer number (15835145747400).

Almost surely, 2^{205102149184252} is an apocalyptic number.

It is an amenable number.

205102149184252 is a deficient number, since it is larger than the sum of its proper divisors (174941348753348).

205102149184252 is a wasteful number, since it uses less digits than its factorization.

205102149184252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161381 (or 10161379 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 205102149184252 in words is "two hundred five trillion, one hundred two billion, one hundred forty-nine million, one hundred eighty-four thousand, two hundred fifty-two".