2664662556 has 96 divisors (see below), whose sum is σ = 6543452160. Its totient is φ = 843208704.

The previous prime is 2664662551. The next prime is 2664662591. The reversal of 2664662556 is 6552664662.

2664662556 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664662551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2899065 + ... + 2899983.

It is an arithmetic number, because the mean of its divisors is an integer number (68160960).

Almost surely, 2^2664662556 is an apocalyptic number.

It is an amenable number.

2664662556 is an abundant number, since it is smaller than the sum of its proper divisors (3878789604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2664662556 is a wasteful number, since it uses less digits than its factorization.

2664662556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1121 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 48.

The square root of 2664662556 is about 51620.3695841089. The cubic root of 2664662556 is about 1386.3750684567.

The spelling of 2664662556 in words is "two billion, six hundred sixty-four million, six hundred sixty-two thousand, five hundred fifty-six".