775071216 has 180 divisors, whose sum is σ = 2306946096. Its totient is φ = 242726400.

The previous prime is 775071211. The next prime is 775071217. The reversal of 775071216 is 612170577.

775071216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775071211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10916461 + ... + 10916531.

Almost surely, 2^775071216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775071216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153473048).

775071216 is an abundant number, since it is smaller than the sum of its proper divisors (1531874880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

775071216 is a wasteful number, since it uses less digits than its factorization.

775071216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 36.

The square root of 775071216 is about 27840.1008618863. The cubic root of 775071216 is about 918.5734096810.

The spelling of 775071216 in words is "seven hundred seventy-five million, seventy-one thousand, two hundred sixteen".