7265201660 has 24 divisors (see below), whose sum is σ = 15391945296. Its totient is φ = 2880362240.

The previous prime is 7265201641. The next prime is 7265201663. The reversal of 7265201660 is 661025627.

It is a self number, because there is not a number n which added to its sum of digits gives 7265201660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7265201663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1605086 + ... + 1609605.

It is an arithmetic number, because the mean of its divisors is an integer number (641331054).

Almost surely, 2^7265201660 is an apocalyptic number.

It is an amenable number.

7265201660 is an abundant number, since it is smaller than the sum of its proper divisors (8126743636).

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

7265201660 is a wasteful number, since it uses less digits than its factorization.

7265201660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214813 (or 3214811 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 7265201660 is about 85236.1523064011. The cubic root of 7265201660 is about 1936.7901058531.

The spelling of 7265201660 in words is "seven billion, two hundred sixty-five million, two hundred one thousand, six hundred sixty".