10661603025361 has 8 divisors (see below), whose sum is σ = 10681285104000. Its totient is φ = 10641928877520.

The previous prime is 10661603025343. The next prime is 10661603025389. The reversal of 10661603025361 is 16352030616601.

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

It is a cyclic number.

It is not a de Polignac number, because 10661603025361 - 2³⁵ = 10627243286993 is a prime.

It is a super-2 number, since 2×10661603025361² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10661603025331) 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, 711816 + ... + 4672246.

It is an arithmetic number, because the mean of its divisors is an integer number (1335160638000).

Almost surely, 2^{10661603025361} is an apocalyptic number.

It is an amenable number.

10661603025361 is a deficient number, since it is larger than the sum of its proper divisors (19682078639).

10661603025361 is an equidigital number, since it uses as much as digits as its factorization.

10661603025361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965399.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 10661603025361 in words is "ten trillion, six hundred sixty-one billion, six hundred three million, twenty-five thousand, three hundred sixty-one".