60666880 has 132 divisors (see below), whose sum is σ = 158364108. Its totient is φ = 22282240.

The previous prime is 60666877. The next prime is 60666883. The reversal of 60666880 is 8866606.

It is an interprime number because it is at equal distance from previous prime (60666877) and next prime (60666883).

It can be written as a sum of positive squares in 6 ways, for example, as 200704 + 60466176 = 448^2 + 7776^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60666883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1479660 + ... + 1479700.

Almost surely, 2^60666880 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 60666880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79182054).

60666880 is an abundant number, since it is smaller than the sum of its proper divisors (97697228).

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

60666880 is a wasteful number, since it uses less digits than its factorization.

60666880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 60666880 is about 7788.8946584223. The cubic root of 60666880 is about 392.9318383904.

The spelling of 60666880 in words is "sixty million, six hundred sixty-six thousand, eight hundred eighty".