1011055560601 has 4 divisors (see below), whose sum is σ = 1011058049332. Its totient is φ = 1011053071872.

The previous prime is 1011055560547. The next prime is 1011055560673. The reversal of 1011055560601 is 1060655501101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 459481978201 + 551573582400 = 677851^2 + 742680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011055560601 - 2¹⁷ = 1011055429529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011055560001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477420 + ... + 1500013.

It is an arithmetic number, because the mean of its divisors is an integer number (252764512333).

Almost surely, 2^{1011055560601} is an apocalyptic number.

It is an amenable number.

1011055560601 is a deficient number, since it is larger than the sum of its proper divisors (2488731).

1011055560601 is an equidigital number, since it uses as much as digits as its factorization.

1011055560601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488730.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 1011055560601 in words is "one trillion, eleven billion, fifty-five million, five hundred sixty thousand, six hundred one".