6610687020 has 240 divisors, whose sum is σ = 24186254400. Its totient is φ = 1510887168.

The previous prime is 6610686989. The next prime is 6610687033. The reversal of 6610687020 is 207860166.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 549712 + ... + 561608.

It is an arithmetic number, because the mean of its divisors is an integer number (100776060).

Almost surely, 2^6610687020 is an apocalyptic number.

6610687020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6610687020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12093127200).

6610687020 is an abundant number, since it is smaller than the sum of its proper divisors (17575567380).

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

6610687020 is a wasteful number, since it uses less digits than its factorization.

6610687020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11939 (or 11914 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 6610687020 is about 81306.1315031037. The cubic root of 6610687020 is about 1876.7893574301.

The spelling of 6610687020 in words is "six billion, six hundred ten million, six hundred eighty-seven thousand, twenty".