2151115161017 has 2 divisors, whose sum is σ = 2151115161018. Its totient is φ = 2151115161016.

The previous prime is 2151115161001. The next prime is 2151115161053. The reversal of 2151115161017 is 7101615111512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1193488515961 + 957626645056 = 1092469^2 + 978584^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151115161017 - 2⁴ = 2151115161001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151115161077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075557580508 + 1075557580509.

It is an arithmetic number, because the mean of its divisors is an integer number (1075557580509).

Almost surely, 2^{2151115161017} is an apocalyptic number.

It is an amenable number.

2151115161017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151115161017 is an equidigital number, since it uses as much as digits as its factorization.

2151115161017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 32.

It can be divided in two parts, 2151115 and 161017, that added together give a palindrome (2312132).

The spelling of 2151115161017 in words is "two trillion, one hundred fifty-one billion, one hundred fifteen million, one hundred sixty-one thousand, seventeen".