60681636 has 120 divisors (see below), whose sum is σ = 175633920. Its totient is φ = 18171648.

The previous prime is 60681629. The next prime is 60681637. The reversal of 60681636 is 63618606.

60681636 is a `hidden beast` number, since 606 + 8 + 16 + 36 = 666.

60681636 is a nontrivial binomial coefficient, being equal to C(11017, 2).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 60681636.

It is not an unprimeable number, because it can be changed into a prime (60681637) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 126445 + ... + 126923.

It is an arithmetic number, because the mean of its divisors is an integer number (1463616).

Almost surely, 2^60681636 is an apocalyptic number.

60681636 is the 11016-th triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60681636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87816960).

60681636 is an abundant number, since it is smaller than the sum of its proper divisors (114952284).

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

60681636 is a wasteful number, since it uses less digits than its factorization.

60681636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 60681636 is about 7789.8418469183. The cubic root of 60681636 is about 392.9636934003.

The spelling of 60681636 in words is "sixty million, six hundred eighty-one thousand, six hundred thirty-six".