102206660 has 24 divisors (see below), whose sum is σ = 215013120. Its totient is φ = 40810464.

The previous prime is 102206653. The next prime is 102206683. The reversal of 102206660 is 66602201.

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, 7931 + ... + 16349.

It is an arithmetic number, because the mean of its divisors is an integer number (8958880).

Almost surely, 2^102206660 is an apocalyptic number.

102206660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102206660 is an abundant number, since it is smaller than the sum of its proper divisors (112806460).

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

102206660 is a wasteful number, since it uses less digits than its factorization.

102206660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035 (or 9033 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 102206660 is about 10109.7309558662. The cubic root of 102206660 is about 467.5482101140.

Adding to 102206660 its reverse (66602201), we get a palindrome (168808861).

The spelling of 102206660 in words is "one hundred two million, two hundred six thousand, six hundred sixty".