206137315320 has 64 divisors (see below), whose sum is σ = 626883369120. Its totient is φ = 54216935424.

The previous prime is 206137315313. The next prime is 206137315331. The reversal of 206137315320 is 23513731602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11757069 + ... + 11774588.

Almost surely, 2^206137315320 is an apocalyptic number.

206137315320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206137315320 is an abundant number, since it is smaller than the sum of its proper divisors (420746053800).

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

206137315320 is a wasteful number, since it uses less digits than its factorization.

206137315320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23531744 (or 23531740 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The spelling of 206137315320 in words is "two hundred six billion, one hundred thirty-seven million, three hundred fifteen thousand, three hundred twenty".