549306317816 has 16 divisors (see below), whose sum is σ = 1031541240240. Its totient is φ = 274228653760.

The previous prime is 549306317803. The next prime is 549306317821. The reversal of 549306317816 is 618713603945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53057645 + ... + 53067996.

It is an arithmetic number, because the mean of its divisors is an integer number (64471327515).

Almost surely, 2^549306317816 is an apocalyptic number.

It is an amenable number.

549306317816 is a deficient number, since it is larger than the sum of its proper divisors (482234922424).

549306317816 is a wasteful number, since it uses less digits than its factorization.

549306317816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106126294 (or 106126290 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 549306317816 in words is "five hundred forty-nine billion, three hundred six million, three hundred seventeen thousand, eight hundred sixteen".