2001570150065 has 4 divisors (see below), whose sum is σ = 2401884180084. Its totient is φ = 1601256120048.

The previous prime is 2001570150043. The next prime is 2001570150077. The reversal of 2001570150065 is 5600510751002.

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 1472395376929 + 529174773136 = 1213423^2 + 727444^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001570150065 - 2¹⁴ = 2001570133681 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200157015002 + ... + 200157015011.

It is an arithmetic number, because the mean of its divisors is an integer number (600471045021).

Almost surely, 2^{2001570150065} is an apocalyptic number.

It is an amenable number.

2001570150065 is a deficient number, since it is larger than the sum of its proper divisors (400314030019).

2001570150065 is an equidigital number, since it uses as much as digits as its factorization.

2001570150065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400314030018.

The product of its (nonzero) digits is 10500, while the sum is 32.

The spelling of 2001570150065 in words is "two trillion, one billion, five hundred seventy million, one hundred fifty thousand, sixty-five".