208264686066 has 48 divisors (see below), whose sum is σ = 454650487200. Its totient is φ = 68897257344.

The previous prime is 208264686031. The next prime is 208264686101. The reversal of 208264686066 is 660686462802.

208264686066 is a `hidden beast` number, since 2 + 0 + 8 + 26 + 4 + 6 + 8 + 606 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (208264686031) and next prime (208264686101).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7715205 + ... + 7742151.

It is an arithmetic number, because the mean of its divisors is an integer number (9471885150).

Almost surely, 2^208264686066 is an apocalyptic number.

208264686066 is an abundant number, since it is smaller than the sum of its proper divisors (246385801134).

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

208264686066 is a wasteful number, since it uses less digits than its factorization.

208264686066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30183 (or 30180 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 54.

The spelling of 208264686066 in words is "two hundred eight billion, two hundred sixty-four million, six hundred eighty-six thousand, sixty-six".