200000680646 has 16 divisors (see below), whose sum is σ = 323222541264. Its totient is φ = 92266715424.

The previous prime is 200000680631. The next prime is 200000680667. The reversal of 200000680646 is 646086000002.

It is a happy number.

It is a super-3 number, since 3×200000680646³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661180 + ... + 1777503.

It is an arithmetic number, because the mean of its divisors is an integer number (20201408829).

Almost surely, 2^200000680646 is an apocalyptic number.

200000680646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

200000680646 is a deficient number, since it is larger than the sum of its proper divisors (123221860618).

200000680646 is a wasteful number, since it uses less digits than its factorization.

200000680646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440935.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 200000680646 its reverse (646086000002), we get a palindrome (846086680648).

The spelling of 200000680646 in words is "two hundred billion, six hundred eighty thousand, six hundred forty-six".