1016780554625 has 32 divisors (see below), whose sum is σ = 1391948917632. Its totient is φ = 735391080000.

The previous prime is 1016780554583. The next prime is 1016780554631. The reversal of 1016780554625 is 5264550876101.

It is not a de Polignac number, because 1016780554625 - 2³⁰ = 1015706812801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1793879 + ... + 2291628.

It is an arithmetic number, because the mean of its divisors is an integer number (43498403676).

Almost surely, 2^{1016780554625} is an apocalyptic number.

It is an amenable number.

1016780554625 is a deficient number, since it is larger than the sum of its proper divisors (375168363007).

1016780554625 is a wasteful number, since it uses less digits than its factorization.

1016780554625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4085714 (or 4085704 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 1016780554625 in words is "one trillion, sixteen billion, seven hundred eighty million, five hundred fifty-four thousand, six hundred twenty-five".