206378508120 has 64 divisors (see below), whose sum is σ = 640485036000. Its totient is φ = 53136534528.

The previous prime is 206378508113. The next prime is 206378508143. The reversal of 206378508120 is 21805873602.

It is a super-2 number, since 2×206378508120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29648605 + ... + 29655564.

Almost surely, 2^206378508120 is an apocalyptic number.

206378508120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206378508120 is an abundant number, since it is smaller than the sum of its proper divisors (434106527880).

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

206378508120 is a wasteful number, since it uses less digits than its factorization.

206378508120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59304212 (or 59304208 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 206378508120 in words is "two hundred six billion, three hundred seventy-eight million, five hundred eight thousand, one hundred twenty".