2656006642 has 8 divisors (see below), whose sum is σ = 3993519600. Its totient is φ = 1324833444.

The previous prime is 2656006603. The next prime is 2656006657. The reversal of 2656006642 is 2466006562.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583892 + ... + 1585567.

It is an arithmetic number, because the mean of its divisors is an integer number (499189950).

Almost surely, 2^2656006642 is an apocalyptic number.

2656006642 is a deficient number, since it is larger than the sum of its proper divisors (1337512958).

2656006642 is a wasteful number, since it uses less digits than its factorization.

2656006642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169880.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2656006642 is about 51536.4593467576. The cubic root of 2656006642 is about 1384.8722689313.

The spelling of 2656006642 in words is "two billion, six hundred fifty-six million, six thousand, six hundred forty-two".