2116739505 has 24 divisors (see below), whose sum is σ = 3401229312. Its totient is φ = 1124125152.

The previous prime is 2116739501. The next prime is 2116739533. The reversal of 2116739505 is 5059376112.

It is not a de Polignac number, because 2116739505 - 2² = 2116739501 is a prime.

It is a super-2 number, since 2×2116739505² = 8961172264055290050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2116739501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3486912 + ... + 3487518.

It is an arithmetic number, because the mean of its divisors is an integer number (141717888).

Almost surely, 2^2116739505 is an apocalyptic number.

It is an amenable number.

2116739505 is a deficient number, since it is larger than the sum of its proper divisors (1284489807).

2116739505 is an frugal number, since it uses more digits than its factorization.

2116739505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 2116739505 is about 46008.0373956551. The cubic root of 2116739505 is about 1283.9727451004.

The spelling of 2116739505 in words is "two billion, one hundred sixteen million, seven hundred thirty-nine thousand, five hundred five".