2116535499 has 24 divisors (see below), whose sum is σ = 3298779120. Its totient is φ = 1299955392.

The previous prime is 2116535461. The next prime is 2116535503. The reversal of 2116535499 is 9945356112.

2116535499 is a `hidden beast` number, since 21 + 1 + 6 + 535 + 4 + 99 = 666.

It is not a de Polignac number, because 2116535499 - 2⁸ = 2116535243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2116535459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43897 + ... + 78485.

It is an arithmetic number, because the mean of its divisors is an integer number (137449130).

Almost surely, 2^2116535499 is an apocalyptic number.

2116535499 is a deficient number, since it is larger than the sum of its proper divisors (1182243621).

2116535499 is a wasteful number, since it uses less digits than its factorization.

2116535499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35131 (or 35128 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 2116535499 is about 46005.8202730915. The cubic root of 2116535499 is about 1283.9314950932.

The spelling of 2116535499 in words is "two billion, one hundred sixteen million, five hundred thirty-five thousand, four hundred ninety-nine".