768220556 has 48 divisors (see below), whose sum is σ = 1419163200. Its totient is φ = 363374592.

The previous prime is 768220553. The next prime is 768220573. The reversal of 768220556 is 655022867.

768220556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (768220553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349840 + ... + 1350408.

It is an arithmetic number, because the mean of its divisors is an integer number (29565900).

Almost surely, 2^768220556 is an apocalyptic number.

It is an amenable number.

768220556 is a deficient number, since it is larger than the sum of its proper divisors (650942644).

768220556 is a wasteful number, since it uses less digits than its factorization.

768220556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 768220556 is about 27716.7919500075. The cubic root of 768220556 is about 915.8590500946.

The spelling of 768220556 in words is "seven hundred sixty-eight million, two hundred twenty thousand, five hundred fifty-six".