6634668640730 has 64 divisors (see below), whose sum is σ = 13021402060800. Its totient is φ = 2419365127680.

The previous prime is 6634668640727. The next prime is 6634668640751. The reversal of 6634668640730 is 370468664366.

It is a self number, because there is not a number n which added to its sum of digits gives 6634668640730.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2490206 + ... + 4412534.

It is an arithmetic number, because the mean of its divisors is an integer number (203459407200).

Almost surely, 2^{6634668640730} is an apocalyptic number.

6634668640730 is a deficient number, since it is larger than the sum of its proper divisors (6386733420070).

6634668640730 is a wasteful number, since it uses less digits than its factorization.

6634668640730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922679.

The product of its (nonzero) digits is 62705664, while the sum is 59.

The spelling of 6634668640730 in words is "six trillion, six hundred thirty-four billion, six hundred sixty-eight million, six hundred forty thousand, seven hundred thirty".