6606635601 has 4 divisors (see below), whose sum is σ = 8808847472. Its totient is φ = 4404423732.

The previous prime is 6606635549. The next prime is 6606635617. The reversal of 6606635601 is 1065366066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6606635601 - 2¹³ = 6606627409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6606635601.

It is not an unprimeable number, because it can be changed into a prime (6606635501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101105931 + ... + 1101105936.

It is an arithmetic number, because the mean of its divisors is an integer number (2202211868).

Almost surely, 2^6606635601 is an apocalyptic number.

It is an amenable number.

6606635601 is a deficient number, since it is larger than the sum of its proper divisors (2202211871).

6606635601 is a wasteful number, since it uses less digits than its factorization.

6606635601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202211870.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 6606635601 is about 81281.2130876502. The cubic root of 6606635601 is about 1876.4058766667.

The spelling of 6606635601 in words is "six billion, six hundred six million, six hundred thirty-five thousand, six hundred one".