205708850012 has 12 divisors (see below), whose sum is σ = 375642248016. Its totient is φ = 98382493440.

The previous prime is 205708849933. The next prime is 205708850029. The reversal of 205708850012 is 210058807502.

It is a happy number.

It is a super-2 number, since 2×205708850012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117982789 + ... + 1117982972.

It is an arithmetic number, because the mean of its divisors is an integer number (31303520668).

Almost surely, 2^205708850012 is an apocalyptic number.

It is an amenable number.

205708850012 is a deficient number, since it is larger than the sum of its proper divisors (169933398004).

205708850012 is a wasteful number, since it uses less digits than its factorization.

205708850012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235965788 (or 2235965786 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 205708850012 in words is "two hundred five billion, seven hundred eight million, eight hundred fifty thousand, twelve".