10645465405561 has 8 divisors (see below), whose sum is σ = 12302945573760. Its totient is φ = 9022160086368.

The previous prime is 10645465405559. The next prime is 10645465405607. The reversal of 10645465405561 is 16550456454601.

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 10645465405561 - 2¹ = 10645465405559 is a prime.

It is a super-2 number, since 2×10645465405561² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10645465405499 and 10645465405508.

It is not an unprimeable number, because it can be changed into a prime (10645465405261) 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, 8543711581 + ... + 8543712826.

It is an arithmetic number, because the mean of its divisors is an integer number (1537868196720).

Almost surely, 2^{10645465405561} is an apocalyptic number.

It is an amenable number.

10645465405561 is a deficient number, since it is larger than the sum of its proper divisors (1657480168199).

10645465405561 is an equidigital number, since it uses as much as digits as its factorization.

10645465405561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17087424503.

The product of its (nonzero) digits is 8640000, while the sum is 52.

The spelling of 10645465405561 in words is "ten trillion, six hundred forty-five billion, four hundred sixty-five million, four hundred five thousand, five hundred sixty-one".