6662664662 has 32 divisors (see below), whose sum is σ = 10288736640. Its totient is φ = 3234591360.

The previous prime is 6662664661. The next prime is 6662664707. The reversal of 6662664662 is 2664662666.

It is a super-2 number, since 2×6662664662² = 88782200796527148488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6662664662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662664661) 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, 4584728 + ... + 4586180.

It is an arithmetic number, because the mean of its divisors is an integer number (321523020).

Almost surely, 2^6662664662 is an apocalyptic number.

6662664662 is a deficient number, since it is larger than the sum of its proper divisors (3626071978).

6662664662 is a wasteful number, since it uses less digits than its factorization.

6662664662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928.

The product of its digits is 4478976, while the sum is 50.

The square root of 6662664662 is about 81625.1472402960. The cubic root of 6662664662 is about 1881.6953793206.

The spelling of 6662664662 in words is "six billion, six hundred sixty-two million, six hundred sixty-four thousand, six hundred sixty-two".