2664656 has 10 divisors (see below), whose sum is σ = 5162802. Its totient is φ = 1332320.

The previous prime is 2664647. The next prime is 2664661. The reversal of 2664656 is 6564662.

It can be written as a sum of positive squares in only one way, i.e., 2202256 + 462400 = 1484^2 + 680^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83255 + ... + 83286.

2^2664656 is an apocalyptic number.

It is an amenable number.

2664656 is a deficient number, since it is larger than the sum of its proper divisors (2498146).

2664656 is a wasteful number, since it uses less digits than its factorization.

2664656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166549 (or 166543 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 2664656 is about 1632.3774073418. The cubic root of 2664656 is about 138.6373931467.

The spelling of 2664656 in words is "two million, six hundred sixty-four thousand, six hundred fifty-six".