206696506 has 16 divisors (see below), whose sum is σ = 335270016. Its totient is φ = 95198656.

The previous prime is 206696473. The next prime is 206696513. The reversal of 206696506 is 605696602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63076 + ... + 66271.

It is an arithmetic number, because the mean of its divisors is an integer number (20954376).

Almost surely, 2^206696506 is an apocalyptic number.

206696506 is a deficient number, since it is larger than the sum of its proper divisors (128573510).

206696506 is a wasteful number, since it uses less digits than its factorization.

206696506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129413.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 206696506 is about 14376.9435555684. The cubic root of 206696506 is about 591.2589282115.

The spelling of 206696506 in words is "two hundred six million, six hundred ninety-six thousand, five hundred six".