6616243500 has 48 divisors (see below), whose sum is σ = 19266505440. Its totient is φ = 1764331200.

The previous prime is 6616243493. The next prime is 6616243507. The reversal of 6616243500 is 53426166.

It is an interprime number because it is at equal distance from previous prime (6616243493) and next prime (6616243507).

It is not an unprimeable number, because it can be changed into a prime (6616243507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2203915 + ... + 2206914.

It is an arithmetic number, because the mean of its divisors is an integer number (401385530).

Almost surely, 2^6616243500 is an apocalyptic number.

6616243500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6616243500 is an abundant number, since it is smaller than the sum of its proper divisors (12650261940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6616243500 is a wasteful number, since it uses less digits than its factorization.

6616243500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410851 (or 4410839 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 6616243500 is about 81340.2944425455. The cubic root of 6616243500 is about 1877.3150426871.

Adding to 6616243500 its reverse (53426166), we get a palindrome (6669669666).

The spelling of 6616243500 in words is "six billion, six hundred sixteen million, two hundred forty-three thousand, five hundred".