206702417078 has 4 divisors (see below), whose sum is σ = 310053625620. Its totient is φ = 103351208538.

The previous prime is 206702417069. The next prime is 206702417083. The reversal of 206702417078 is 870714207602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51675604268 + ... + 51675604271.

It is an arithmetic number, because the mean of its divisors is an integer number (77513406405).

Almost surely, 2^206702417078 is an apocalyptic number.

206702417078 is a deficient number, since it is larger than the sum of its proper divisors (103351208542).

206702417078 is a wasteful number, since it uses less digits than its factorization.

206702417078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103351208541.

The product of its (nonzero) digits is 263424, while the sum is 44.

The spelling of 206702417078 in words is "two hundred six billion, seven hundred two million, four hundred seventeen thousand, seventy-eight".