205216670010 has 32 divisors (see below), whose sum is σ = 537294555072. Its totient is φ = 49749495680.

The previous prime is 205216670003. The next prime is 205216670027. The reversal of 205216670010 is 10076612502.

It is a super-2 number, since 2×205216670010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 205216670010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310934019 + ... + 310934678.

It is an arithmetic number, because the mean of its divisors is an integer number (16790454846).

Almost surely, 2^205216670010 is an apocalyptic number.

205216670010 is an abundant number, since it is smaller than the sum of its proper divisors (332077885062).

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

205216670010 is a wasteful number, since it uses less digits than its factorization.

205216670010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621868718.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 205216670010 in words is "two hundred five billion, two hundred sixteen million, six hundred seventy thousand, ten".