206554661012 has 48 divisors (see below), whose sum is σ = 434929031040. Its totient is φ = 83849427072.

The previous prime is 206554660999. The next prime is 206554661017. The reversal of 206554661012 is 210166455602.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206554661017) 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, 3265478 + ... + 3328130.

It is an arithmetic number, because the mean of its divisors is an integer number (9061021480).

Almost surely, 2^206554661012 is an apocalyptic number.

It is an amenable number.

206554661012 is an abundant number, since it is smaller than the sum of its proper divisors (228374370028).

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

206554661012 is a wasteful number, since it uses less digits than its factorization.

206554661012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68880 (or 68878 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 206554661012 in words is "two hundred six billion, five hundred fifty-four million, six hundred sixty-one thousand, twelve".