2520086660 has 288 divisors, whose sum is σ = 7239456000. Its totient is φ = 727501824.

The previous prime is 2520086633. The next prime is 2520086663. The reversal of 2520086660 is 666800252.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2520086660.

It is not an unprimeable number, because it can be changed into a prime (2520086663) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7019561 + ... + 7019919.

It is an arithmetic number, because the mean of its divisors is an integer number (25137000).

Almost surely, 2^2520086660 is an apocalyptic number.

2520086660 is a gapful number since it is divisible by the number (20) 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 2520086660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3619728000).

2520086660 is an abundant number, since it is smaller than the sum of its proper divisors (4719369340).

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

2520086660 is a wasteful number, since it uses less digits than its factorization.

2520086660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2520086660 is about 50200.4647388846. The cubic root of 2520086660 is about 1360.8340220231.

The spelling of 2520086660 in words is "two billion, five hundred twenty million, eighty-six thousand, six hundred sixty".