2116589501 has 8 divisors (see below), whose sum is σ = 2283107064. Its totient is φ = 1950600960.

The previous prime is 2116589443. The next prime is 2116589533. The reversal of 2116589501 is 1059856112.

It can be written as a sum of positive squares in 4 ways, for example, as 290736601 + 1825852900 = 17051^2 + 42730^2 .

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 2116589501 - 2¹⁸ = 2116327357 is a prime.

It is a super-2 number, since 2×2116589501² = 8959902231486858002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116589581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123920 + ... + 139961.

It is an arithmetic number, because the mean of its divisors is an integer number (285388383).

Almost surely, 2^2116589501 is an apocalyptic number.

It is an amenable number.

2116589501 is a deficient number, since it is larger than the sum of its proper divisors (166517563).

2116589501 is a wasteful number, since it uses less digits than its factorization.

2116589501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264511.

The product of its (nonzero) digits is 21600, while the sum is 38.

The square root of 2116589501 is about 46006.4071733492. The cubic root of 2116589501 is about 1283.9424145540.

The spelling of 2116589501 in words is "two billion, one hundred sixteen million, five hundred eighty-nine thousand, five hundred one".