6662609774 has 16 divisors (see below), whose sum is σ = 10583688096. Its totient is φ = 3134784000.

The previous prime is 6662609761. The next prime is 6662609777. The reversal of 6662609774 is 4779062666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662609777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222599 + ... + 250749.

It is an arithmetic number, because the mean of its divisors is an integer number (661480506).

Almost surely, 2^6662609774 is an apocalyptic number.

6662609774 is a deficient number, since it is larger than the sum of its proper divisors (3921078322).

6662609774 is a wasteful number, since it uses less digits than its factorization.

6662609774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35131.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The square root of 6662609774 is about 81624.8110196894. The cubic root of 6662609774 is about 1881.6902120798.

The spelling of 6662609774 in words is "six billion, six hundred sixty-two million, six hundred nine thousand, seven hundred seventy-four".