10661016601 has 4 divisors (see below), whose sum is σ = 10663510032. Its totient is φ = 10658523172.

The previous prime is 10661016599. The next prime is 10661016607.

10661016601 is nontrivially palindromic in base 10.

10661016601 is digitally balanced in base 2, 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 10661016601 - 2¹ = 10661016599 is a prime.

It is a super-2 number, since 2×10661016601² (a number of 21 digits) contains 22 as substring.

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 10661016601.

It is not an unprimeable number, because it can be changed into a prime (10661016607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240291 + ... + 1248856.

It is an arithmetic number, because the mean of its divisors is an integer number (2665877508).

Almost surely, 2^10661016601 is an apocalyptic number.

It is an amenable number.

10661016601 is a deficient number, since it is larger than the sum of its proper divisors (2493431).

10661016601 is an equidigital number, since it uses as much as digits as its factorization.

10661016601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493430.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 10661016601 in words is "ten billion, six hundred sixty-one million, sixteen thousand, six hundred one".