2116163497 has 4 divisors (see below), whose sum is σ = 2418472576. Its totient is φ = 1813854420.

The previous prime is 2116163479. The next prime is 2116163527. The reversal of 2116163497 is 7943616112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-2116163497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116163477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151154529 + ... + 151154542.

It is an arithmetic number, because the mean of its divisors is an integer number (604618144).

Almost surely, 2^2116163497 is an apocalyptic number.

It is an amenable number.

2116163497 is a deficient number, since it is larger than the sum of its proper divisors (302309079).

2116163497 is an equidigital number, since it uses as much as digits as its factorization.

2116163497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302309078.

The product of its digits is 54432, while the sum is 40.

The square root of 2116163497 is about 46001.7771069771. Note that the first 3 decimals coincide. The cubic root of 2116163497 is about 1283.8562694758.

The spelling of 2116163497 in words is "two billion, one hundred sixteen million, one hundred sixty-three thousand, four hundred ninety-seven".