775020168 has 48 divisors (see below), whose sum is σ = 2260478220. Its totient is φ = 238467456.

The previous prime is 775020161. The next prime is 775020263. The reversal of 775020168 is 861020577.

775020168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 774063684 + 956484 = 27822^2 + 978^2 .

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

It is not an unprimeable number, because it can be changed into a prime (775020161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413071 + ... + 414942.

Almost surely, 2^775020168 is an apocalyptic number.

775020168 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

775020168 is an abundant number, since it is smaller than the sum of its proper divisors (1485458052).

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

775020168 is a wasteful number, since it uses less digits than its factorization.

775020168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828038 (or 828031 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 775020168 is about 27839.1840397667. The cubic root of 775020168 is about 918.5532427750.

The spelling of 775020168 in words is "seven hundred seventy-five million, twenty thousand, one hundred sixty-eight".