5115615165591 has 16 divisors (see below), whose sum is σ = 7822768076544. Its totient is φ = 2912879303424.

The previous prime is 5115615165587. The next prime is 5115615165593. The reversal of 5115615165591 is 1955615165115.

It is not a de Polignac number, because 5115615165591 - 2² = 5115615165587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5115615165593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430384026 + ... + 430395911.

It is an arithmetic number, because the mean of its divisors is an integer number (488923004784).

Almost surely, 2^{5115615165591} is an apocalyptic number.

5115615165591 is a deficient number, since it is larger than the sum of its proper divisors (2707152910953).

5115615165591 is a wasteful number, since it uses less digits than its factorization.

5115615165591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860780230.

The product of its digits is 1012500, while the sum is 51.

The spelling of 5115615165591 in words is "five trillion, one hundred fifteen billion, six hundred fifteen million, one hundred sixty-five thousand, five hundred ninety-one".