2166625762115 has 4 divisors (see below), whose sum is σ = 2599950914544. Its totient is φ = 1733300609688.

The previous prime is 2166625762109. The next prime is 2166625762159. The reversal of 2166625762115 is 5112675266612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2166625762115 - 2⁴ = 2166625762099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216662576207 + ... + 216662576216.

It is an arithmetic number, because the mean of its divisors is an integer number (649987728636).

Almost surely, 2^{2166625762115} is an apocalyptic number.

2166625762115 is a deficient number, since it is larger than the sum of its proper divisors (433325152429).

2166625762115 is an equidigital number, since it uses as much as digits as its factorization.

2166625762115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433325152428.

The product of its digits is 1814400, while the sum is 50.

The spelling of 2166625762115 in words is "two trillion, one hundred sixty-six billion, six hundred twenty-five million, seven hundred sixty-two thousand, one hundred fifteen".