1061005660513 has 4 divisors (see below), whose sum is σ = 1061073868480. Its totient is φ = 1060937452548.

The previous prime is 1061005660511. The next prime is 1061005660607. The reversal of 1061005660513 is 3150665001601.

1061005660513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1061005660513 - 2¹ = 1061005660511 is a prime.

It is a super-2 number, since 2×1061005660513² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1061005660511) 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, 34080645 + ... + 34111762.

It is an arithmetic number, because the mean of its divisors is an integer number (265268467120).

Almost surely, 2^{1061005660513} is an apocalyptic number.

It is an amenable number.

1061005660513 is a deficient number, since it is larger than the sum of its proper divisors (68207967).

1061005660513 is an equidigital number, since it uses as much as digits as its factorization.

1061005660513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68207966.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 1061005660513 in words is "one trillion, sixty-one billion, five million, six hundred sixty thousand, five hundred thirteen".