205102061542653 has 32 divisors (see below), whose sum is σ = 299206225692672. Its totient is φ = 123939714729600.

The previous prime is 205102061542633. The next prime is 205102061542661. The reversal of 205102061542653 is 356245160201502.

It is not a de Polignac number, because 205102061542653 - 2⁸ = 205102061542397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205102061542633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14526201 + ... + 24924177.

It is an arithmetic number, because the mean of its divisors is an integer number (9350194552896).

Almost surely, 2^{205102061542653} is an apocalyptic number.

It is an amenable number.

205102061542653 is a deficient number, since it is larger than the sum of its proper divisors (94104164150019).

205102061542653 is a wasteful number, since it uses less digits than its factorization.

205102061542653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10399745.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 205102061542653 in words is "two hundred five trillion, one hundred two billion, sixty-one million, five hundred forty-two thousand, six hundred fifty-three".