2680320556 has 6 divisors (see below), whose sum is σ = 4690560980. Its totient is φ = 1340160276.

The previous prime is 2680320523. The next prime is 2680320569. The reversal of 2680320556 is 6550230862.

It is a happy number.

2680320556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2680320556² = 14368236565832298272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335040066 + ... + 335040073.

Almost surely, 2^2680320556 is an apocalyptic number.

It is an amenable number.

2680320556 is a deficient number, since it is larger than the sum of its proper divisors (2010240424).

2680320556 is a wasteful number, since it uses less digits than its factorization.

2680320556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670080143 (or 670080141 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 2680320556 is about 51771.8123692806. The cubic root of 2680320556 is about 1389.0852902285.

The spelling of 2680320556 in words is "two billion, six hundred eighty million, three hundred twenty thousand, five hundred fifty-six".