60020660 has 48 divisors (see below), whose sum is σ = 147955584. Its totient is φ = 20020608.

The previous prime is 60020657. The next prime is 60020689. The reversal of 60020660 is 6602006.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614 + ... + 10973.

It is an arithmetic number, because the mean of its divisors is an integer number (3082408).

Almost surely, 2^60020660 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 60020660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73977792).

60020660 is an abundant number, since it is smaller than the sum of its proper divisors (87934924).

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

60020660 is a wasteful number, since it uses less digits than its factorization.

60020660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11640 (or 11638 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 60020660 is about 7747.3001748996. The cubic root of 60020660 is about 391.5316929413.

Adding to 60020660 its reverse (6602006), we get a palindrome (66622666).

The spelling of 60020660 in words is "sixty million, twenty thousand, six hundred sixty".