7664660056 has 16 divisors (see below), whose sum is σ = 14457295440. Its totient is φ = 3809381280.

The previous prime is 7664660041. The next prime is 7664660057. The reversal of 7664660056 is 6500664667.

It is a junction number, because it is equal to n+sod(n) for n = 7664659988 and 7664660015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7664660057) by changing a digit.

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, 2867175 + ... + 2869846.

It is an arithmetic number, because the mean of its divisors is an integer number (903580965).

Almost surely, 2^7664660056 is an apocalyptic number.

It is an amenable number.

7664660056 is a deficient number, since it is larger than the sum of its proper divisors (6792635384).

7664660056 is a wasteful number, since it uses less digits than its factorization.

7664660056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5737194 (or 5737190 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The square root of 7664660056 is about 87548.0442728448. The cubic root of 7664660056 is about 1971.6551882420.

The spelling of 7664660056 in words is "seven billion, six hundred sixty-four million, six hundred sixty thousand, fifty-six".