102278436216025 has 24 divisors (see below), whose sum is σ = 126883648204544. Its totient is φ = 81785084745600.

The previous prime is 102278436215987. The next prime is 102278436216097. The reversal of 102278436216025 is 520612634872201.

It is not a de Polignac number, because 102278436216025 - 2³³ = 102269846281433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102278436216025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 948804880 + ... + 948912670.

Almost surely, 2^{102278436216025} is an apocalyptic number.

It is an amenable number.

102278436216025 is a deficient number, since it is larger than the sum of its proper divisors (24605211988519).

102278436216025 is a wasteful number, since it uses less digits than its factorization.

102278436216025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124921 (or 124916 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 102278436216025 in words is "one hundred two trillion, two hundred seventy-eight billion, four hundred thirty-six million, two hundred sixteen thousand, twenty-five".