9791656601 has 4 divisors (see below), whose sum is σ = 9795336192. Its totient is φ = 9787977012.

The previous prime is 9791656597. The next prime is 9791656603. The reversal of 9791656601 is 1066561979.

9791656601 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 9791656601 - 2² = 9791656597 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 9791656601.

It is not an unprimeable number, because it can be changed into a prime (9791656603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1835801 + ... + 1841126.

It is an arithmetic number, because the mean of its divisors is an integer number (2448834048).

Almost surely, 2^9791656601 is an apocalyptic number.

It is an amenable number.

9791656601 is a deficient number, since it is larger than the sum of its proper divisors (3679591).

9791656601 is a wasteful number, since it uses less digits than its factorization.

9791656601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3679590.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 9791656601 is about 98952.7998643798. The cubic root of 9791656601 is about 2139.3674871741.

The spelling of 9791656601 in words is "nine billion, seven hundred ninety-one million, six hundred fifty-six thousand, six hundred one".