1010655561 has 8 divisors (see below), whose sum is σ = 1347725344. Its totient is φ = 673678080.

The previous prime is 1010655557. The next prime is 1010655563. The reversal of 1010655561 is 1655560101.

1010655561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1010655561 - 2² = 1010655557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010655563) 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, 8745 + ... + 45801.

It is an arithmetic number, because the mean of its divisors is an integer number (168465668).

Almost surely, 2^1010655561 is an apocalyptic number.

It is an amenable number.

1010655561 is a deficient number, since it is larger than the sum of its proper divisors (337069783).

1010655561 is an equidigital number, since it uses as much as digits as its factorization.

1010655561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46151.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 1010655561 is about 31790.8093794417. The cubic root of 1010655561 is about 1003.5393121574.

The spelling of 1010655561 in words is "one billion, ten million, six hundred fifty-five thousand, five hundred sixty-one".