766620168 has 128 divisors (see below), whose sum is σ = 2134408320. Its totient is φ = 228372480.

The previous prime is 766620161. The next prime is 766620203. The reversal of 766620168 is 861026667.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (766620161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648538 + ... + 649718.

It is an arithmetic number, because the mean of its divisors is an integer number (16675065).

Almost surely, 2^766620168 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 766620168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067204160).

766620168 is an abundant number, since it is smaller than the sum of its proper divisors (1367788152).

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

766620168 is a wasteful number, since it uses less digits than its factorization.

766620168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 766620168 is about 27687.9065297469. The cubic root of 766620168 is about 915.2226231275. Note that the first 3 decimals are identical.

The spelling of 766620168 in words is "seven hundred sixty-six million, six hundred twenty thousand, one hundred sixty-eight".