102103615566 has 24 divisors (see below), whose sum is σ = 221575118544. Its totient is φ = 33980597280.

The previous prime is 102103615531. The next prime is 102103615577. The reversal of 102103615566 is 665516301201.

102103615566 is a `hidden beast` number, since 10 + 21 + 0 + 3 + 61 + 5 + 566 = 666.

It is a super-3 number, since 3×102103615566³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102103615566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4483431 + ... + 4506146.

It is an arithmetic number, because the mean of its divisors is an integer number (9232296606).

Almost surely, 2^102103615566 is an apocalyptic number.

102103615566 is an abundant number, since it is smaller than the sum of its proper divisors (119471502978).

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

102103615566 is a wasteful number, since it uses less digits than its factorization.

102103615566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990216 (or 8990213 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 102103615566 its reverse (665516301201), we get a palindrome (767619916767).

The spelling of 102103615566 in words is "one hundred two billion, one hundred three million, six hundred fifteen thousand, five hundred sixty-six".