550866777616 has 15 divisors (see below), whose sum is σ = 1067310133743. Its totient is φ = 275431904400.

The previous prime is 550866777577. The next prime is 550866777631. The reversal of 550866777616 is 616777668055.

The square root of 550866777616 is 742204.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2876041 + ... + 3061591.

Almost surely, 2^550866777616 is an apocalyptic number.

550866777616 is the 742204-th square number.

It is an amenable number.

550866777616 is a deficient number, since it is larger than the sum of its proper divisors (516443356127).

550866777616 is an frugal number, since it uses more digits than its factorization.

550866777616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371110 (or 185553 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 64.

Multiplying 550866777616 by its sum of digits (64), we get a square (35255473767424 = 5937632²).

The spelling of 550866777616 in words is "five hundred fifty billion, eight hundred sixty-six million, seven hundred seventy-seven thousand, six hundred sixteen".