2051650561017 has 4 divisors (see below), whose sum is σ = 2735534081360. Its totient is φ = 1367767040676.

The previous prime is 2051650560997. The next prime is 2051650561021. The reversal of 2051650561017 is 7101650561502.

It is a happy number.

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 not a de Polignac number, because 2051650561017 - 2²² = 2051646366713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051650561087) 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, 341941760167 + ... + 341941760172.

It is an arithmetic number, because the mean of its divisors is an integer number (683883520340).

Almost surely, 2^{2051650561017} is an apocalyptic number.

It is an amenable number.

2051650561017 is a deficient number, since it is larger than the sum of its proper divisors (683883520343).

2051650561017 is an equidigital number, since it uses as much as digits as its factorization.

2051650561017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683883520342.

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 2051650561017 in words is "two trillion, fifty-one billion, six hundred fifty million, five hundred sixty-one thousand, seventeen".