916823344550 has 12 divisors (see below), whose sum is σ = 1705291420956. Its totient is φ = 366729337800.

The previous prime is 916823344543. The next prime is 916823344553. The reversal of 916823344550 is 55443328619.

It is a super-2 number, since 2×916823344550² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 18336466891 = 916823344550 / (9 + 1 + 6 + 8 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916823344553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9168233396 + ... + 9168233495.

It is an arithmetic number, because the mean of its divisors is an integer number (142107618413).

Almost surely, 2^916823344550 is an apocalyptic number.

916823344550 is a deficient number, since it is larger than the sum of its proper divisors (788468076406).

916823344550 is a wasteful number, since it uses less digits than its factorization.

916823344550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18336466903 (or 18336466898 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 916823344550 in words is "nine hundred sixteen billion, eight hundred twenty-three million, three hundred forty-four thousand, five hundred fifty".