206391015924 has 24 divisors (see below), whose sum is σ = 492778550880. Its totient is φ = 67197074784.

The previous prime is 206391015923. The next prime is 206391015953. The reversal of 206391015924 is 429510193602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206391015923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199990779 + ... + 199991810.

It is an arithmetic number, because the mean of its divisors is an integer number (20532439620).

Almost surely, 2^206391015924 is an apocalyptic number.

It is an amenable number.

206391015924 is an abundant number, since it is smaller than the sum of its proper divisors (286387534956).

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

206391015924 is a wasteful number, since it uses less digits than its factorization.

206391015924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399982639 (or 399982637 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 206391015924 in words is "two hundred six billion, three hundred ninety-one million, fifteen thousand, nine hundred twenty-four".