2161743527615 has 16 divisors (see below), whose sum is σ = 2972070066240. Its totient is φ = 1478641804800.

The previous prime is 2161743527597. The next prime is 2161743527651. The reversal of 2161743527615 is 5167253471612.

It is not a de Polignac number, because 2161743527615 - 2³⁴ = 2144563658431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76998560 + ... + 77026629.

It is an arithmetic number, because the mean of its divisors is an integer number (185754379140).

Almost surely, 2^{2161743527615} is an apocalyptic number.

2161743527615 is a deficient number, since it is larger than the sum of its proper divisors (810326538625).

2161743527615 is a wasteful number, since it uses less digits than its factorization.

2161743527615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154025602.

The product of its digits is 2116800, while the sum is 50.

The spelling of 2161743527615 in words is "two trillion, one hundred sixty-one billion, seven hundred forty-three million, five hundred twenty-seven thousand, six hundred fifteen".