60515721760 has 96 divisors (see below), whose sum is σ = 154086296112. Its totient is φ = 22326804480.

The previous prime is 60515721757. The next prime is 60515721769. The reversal of 60515721760 is 6712751506.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 359329936 + 60156391824 = 18956^2 + 245268^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (60515721769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2820192 + ... + 2841568.

Almost surely, 2^60515721760 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 60515721760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77043148056).

60515721760 is an abundant number, since it is smaller than the sum of its proper divisors (93570574352).

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

60515721760 is a wasteful number, since it uses less digits than its factorization.

60515721760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22766 (or 22758 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 60515721760 in words is "sixty billion, five hundred fifteen million, seven hundred twenty-one thousand, seven hundred sixty".