2116622312605 has 8 divisors (see below), whose sum is σ = 2539967621472. Its totient is φ = 1693283952528.

The previous prime is 2116622312591. The next prime is 2116622312621. The reversal of 2116622312605 is 5062132266112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2116622312605 - 2³⁷ = 1979183359133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041759 + ... + 2306188.

It is an arithmetic number, because the mean of its divisors is an integer number (317495952684).

Almost surely, 2^{2116622312605} is an apocalyptic number.

It is an amenable number.

2116622312605 is a deficient number, since it is larger than the sum of its proper divisors (423345308867).

2116622312605 is a wasteful number, since it uses less digits than its factorization.

2116622312605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474395.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 2116622312605 its reverse (5062132266112), we get a palindrome (7178754578717).

The spelling of 2116622312605 in words is "two trillion, one hundred sixteen billion, six hundred twenty-two million, three hundred twelve thousand, six hundred five".