2660646662 has 8 divisors (see below), whose sum is σ = 4011649176. Its totient is φ = 1323430272.

The previous prime is 2660646623. The next prime is 2660646683. The reversal of 2660646662 is 2666460662.

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, 3446048 + ... + 3446819.

It is an arithmetic number, because the mean of its divisors is an integer number (501456147).

Almost surely, 2^2660646662 is an apocalyptic number.

2660646662 is a deficient number, since it is larger than the sum of its proper divisors (1351002514).

2660646662 is a wasteful number, since it uses less digits than its factorization.

2660646662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6893062.

The product of its (nonzero) digits is 746496, while the sum is 44.

The square root of 2660646662 is about 51581.4565711361. The cubic root of 2660646662 is about 1385.6782529466.

The spelling of 2660646662 in words is "two billion, six hundred sixty million, six hundred forty-six thousand, six hundred sixty-two".