102207557666 has 8 divisors (see below), whose sum is σ = 153986717520. Its totient is φ = 50878651828.

The previous prime is 102207557657. The next prime is 102207557671. The reversal of 102207557666 is 666755702201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102207557666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112562936 + ... + 112563843.

It is an arithmetic number, because the mean of its divisors is an integer number (19248339690).

Almost surely, 2^102207557666 is an apocalyptic number.

102207557666 is a deficient number, since it is larger than the sum of its proper divisors (51779159854).

102207557666 is a wasteful number, since it uses less digits than its factorization.

102207557666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225127008.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 102207557666 in words is "one hundred two billion, two hundred seven million, five hundred fifty-seven thousand, six hundred sixty-six".