102081815020888 has 8 divisors (see below), whose sum is σ = 191403403164180. Its totient is φ = 51040907510440.

The previous prime is 102081815020853. The next prime is 102081815020921. The reversal of 102081815020888 is 888020518180201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6380113438798 + ... + 6380113438813.

Almost surely, 2^{102081815020888} is an apocalyptic number.

It is an amenable number.

102081815020888 is a deficient number, since it is larger than the sum of its proper divisors (89321588143292).

102081815020888 is a wasteful number, since it uses less digits than its factorization.

102081815020888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12760226877617 (or 12760226877613 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 52.

The spelling of 102081815020888 in words is "one hundred two trillion, eighty-one billion, eight hundred fifteen million, twenty thousand, eight hundred eighty-eight".