660000161059 has 4 divisors (see below), whose sum is σ = 660008411280. Its totient is φ = 659991910840.

The previous prime is 660000161053. The next prime is 660000161069. The reversal of 660000161059 is 950161000066.

660000161059 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 an emirpimes, since its reverse is a distinct semiprime: 950161000066 = 2 ⋅475080500033.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-660000161059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (660000161053) 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, 4003927 + ... + 4165504.

It is an arithmetic number, because the mean of its divisors is an integer number (165002102820).

Almost surely, 2^660000161059 is an apocalyptic number.

660000161059 is a deficient number, since it is larger than the sum of its proper divisors (8250221).

660000161059 is an equidigital number, since it uses as much as digits as its factorization.

660000161059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8250220.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 660000161059 in words is "six hundred sixty billion, one hundred sixty-one thousand, fifty-nine".