6201521560 has 64 divisors (see below), whose sum is σ = 15061243680. Its totient is φ = 2284538880.

The previous prime is 6201521551. The next prime is 6201521569. The reversal of 6201521560 is 651251026.

It is an interprime number because it is at equal distance from previous prime (6201521551) and next prime (6201521569).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6201521569) 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 15 ways as a sum of consecutive naturals, for example, 216900 + ... + 243820.

Almost surely, 2^6201521560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6201521560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7530621840).

6201521560 is an abundant number, since it is smaller than the sum of its proper divisors (8859722120).

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

6201521560 is a wasteful number, since it uses less digits than its factorization.

6201521560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27388 (or 27384 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6201521560 is about 78749.7400630631. The cubic root of 6201521560 is about 1837.2408196307.

Adding to 6201521560 its reverse (651251026), we get a palindrome (6852772586).

The spelling of 6201521560 in words is "six billion, two hundred one million, five hundred twenty-one thousand, five hundred sixty".