2656116646 has 8 divisors (see below), whose sum is σ = 3984720624. Its totient is φ = 1327876440.

The previous prime is 2656116581. The next prime is 2656116679. The reversal of 2656116646 is 6466116562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71890 + ... + 102373.

It is an arithmetic number, because the mean of its divisors is an integer number (498090078).

Almost surely, 2^2656116646 is an apocalyptic number.

2656116646 is a deficient number, since it is larger than the sum of its proper divisors (1328603978).

2656116646 is a wasteful number, since it uses less digits than its factorization.

2656116646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181886.

The product of its digits is 311040, while the sum is 43.

The square root of 2656116646 is about 51537.5265801532. The cubic root of 2656116646 is about 1384.8913877823.

The spelling of 2656116646 in words is "two billion, six hundred fifty-six million, one hundred sixteen thousand, six hundred forty-six".