10811604961 has 16 divisors (see below), whose sum is σ = 11015619840. Its totient is φ = 10609522560.

The previous prime is 10811604949. The next prime is 10811604977. The reversal of 10811604961 is 16940611801.

It is a cyclic number.

It is not a de Polignac number, because 10811604961 - 2²¹ = 10809507809 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 10811604961.

It is not an unprimeable number, because it can be changed into a prime (10811604761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14281795 + ... + 14282551.

It is an arithmetic number, because the mean of its divisors is an integer number (688476240).

Almost surely, 2^10811604961 is an apocalyptic number.

It is an amenable number.

10811604961 is a deficient number, since it is larger than the sum of its proper divisors (204014879).

10811604961 is an equidigital number, since it uses as much as digits as its factorization.

10811604961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 10811604961 in words is "ten billion, eight hundred eleven million, six hundred four thousand, nine hundred sixty-one".