102016878705802 has 16 divisors (see below), whose sum is σ = 155921733798120. Its totient is φ = 50043080348352.

The previous prime is 102016878705743. The next prime is 102016878705809. The reversal of 102016878705802 is 208507878610201.

It can be written as a sum of positive squares in 4 ways, for example, as 96861204392481 + 5155674313321 = 9841809^2 + 2270611^2 .

It is not an unprimeable number, because it can be changed into a prime (102016878705809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26410977 + ... + 30026212.

Almost surely, 2^{102016878705802} is an apocalyptic number.

102016878705802 is a deficient number, since it is larger than the sum of its proper divisors (53904855092318).

102016878705802 is a wasteful number, since it uses less digits than its factorization.

102016878705802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56454297.

The product of its (nonzero) digits is 3010560, while the sum is 55.

The spelling of 102016878705802 in words is "one hundred two trillion, sixteen billion, eight hundred seventy-eight million, seven hundred five thousand, eight hundred two".