10661799611 has 8 divisors (see below), whose sum is σ = 11424977424. Its totient is φ = 9913734400.

The previous prime is 10661799587. The next prime is 10661799641. The reversal of 10661799611 is 11699716601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10661799611 is a prime.

It is a super-2 number, since 2×10661799611² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10661799641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3776690 + ... + 3779511.

It is an arithmetic number, because the mean of its divisors is an integer number (1428122178).

Almost surely, 2^10661799611 is an apocalyptic number.

10661799611 is a deficient number, since it is larger than the sum of its proper divisors (763177813).

10661799611 is an equidigital number, since it uses as much as digits as its factorization.

10661799611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556301.

The product of its (nonzero) digits is 122472, while the sum is 47.

The spelling of 10661799611 in words is "ten billion, six hundred sixty-one million, seven hundred ninety-nine thousand, six hundred eleven".