2116197635 has 4 divisors (see below), whose sum is σ = 2539437168. Its totient is φ = 1692958104.

The previous prime is 2116197617. The next prime is 2116197653. The reversal of 2116197635 is 5367916112.

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

It is an interprime number because it is at equal distance from previous prime (2116197617) and next prime (2116197653).

It is a cyclic number.

It is not a de Polignac number, because 2116197635 - 2⁸ = 2116197379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2116197592 and 2116197601.

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, 211619759 + ... + 211619768.

It is an arithmetic number, because the mean of its divisors is an integer number (634859292).

Almost surely, 2^2116197635 is an apocalyptic number.

2116197635 is a deficient number, since it is larger than the sum of its proper divisors (423239533).

2116197635 is an equidigital number, since it uses as much as digits as its factorization.

2116197635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423239532.

The product of its digits is 68040, while the sum is 41.

The square root of 2116197635 is about 46002.1481563633. The cubic root of 2116197635 is about 1283.8631731720.

The spelling of 2116197635 in words is "two billion, one hundred sixteen million, one hundred ninety-seven thousand, six hundred thirty-five".