60691680 has 288 divisors, whose sum is σ = 246564864. Its totient is φ = 13810176.

The previous prime is 60691661. The next prime is 60691739. The reversal of 60691680 is 8619606.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 272049 + ... + 272271.

It is an arithmetic number, because the mean of its divisors is an integer number (856128).

Almost surely, 2^60691680 is an apocalyptic number.

60691680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 60691680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123282432).

60691680 is an abundant number, since it is smaller than the sum of its proper divisors (185873184).

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

60691680 is a wasteful number, since it uses less digits than its factorization.

60691680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 60691680 is about 7790.4865059892. The cubic root of 60691680 is about 392.9853732683.

The spelling of 60691680 in words is "sixty million, six hundred ninety-one thousand, six hundred eighty".