205468651 has 16 divisors (see below), whose sum is σ = 218972160. Its totient is φ = 192497760.

The previous prime is 205468649. The next prime is 205468661. The reversal of 205468651 is 156864502.

It is a cyclic number.

It is not a de Polignac number, because 205468651 - 2¹ = 205468649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205468651.

It is not an unprimeable number, because it can be changed into a prime (205468661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129006 + ... + 130588.

It is an arithmetic number, because the mean of its divisors is an integer number (13685760).

Almost surely, 2^205468651 is an apocalyptic number.

205468651 is a deficient number, since it is larger than the sum of its proper divisors (13503509).

205468651 is a wasteful number, since it uses less digits than its factorization.

205468651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 205468651 is about 14334.1777231901. The cubic root of 205468651 is about 590.0858354481.

The spelling of 205468651 in words is "two hundred five million, four hundred sixty-eight thousand, six hundred fifty-one".