2625360660 has 240 divisors, whose sum is σ = 9392389776. Its totient is φ = 608145408.

The previous prime is 2625360659. The next prime is 2625360679. The reversal of 2625360660 is 660635262.

2625360660 is a `hidden beast` number, since 2 + 62 + 536 + 0 + 6 + 60 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 538332804 + 2087027856 = 23202^2 + 45684^2 .

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

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 354354 + ... + 361686.

Almost surely, 2^2625360660 is an apocalyptic number.

2625360660 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 2625360660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4696194888).

2625360660 is an abundant number, since it is smaller than the sum of its proper divisors (6767029116).

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

2625360660 is a wasteful number, since it uses less digits than its factorization.

2625360660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7384 (or 7373 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 2625360660 is about 51238.2733901134. The cubic root of 2625360660 is about 1379.5252620335.

The spelling of 2625360660 in words is "two billion, six hundred twenty-five million, three hundred sixty thousand, six hundred sixty".