60661703520 has 1152 divisors, whose sum is σ = 249250659840. Its totient is φ = 13795246080.

The previous prime is 60661703507. The next prime is 60661703527. The reversal of 60661703520 is 2530716606.

60661703520 is a `hidden beast` number, since 6 + 0 + 6 + 61 + 70 + 3 + 520 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60661703527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 830982204 + ... + 830982276.

It is an arithmetic number, because the mean of its divisors is an integer number (216363420).

Almost surely, 2^60661703520 is an apocalyptic number.

60661703520 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 60661703520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124625329920).

60661703520 is an abundant number, since it is smaller than the sum of its proper divisors (188588956320).

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

60661703520 is a wasteful number, since it uses less digits than its factorization.

60661703520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 60661703520 in words is "sixty billion, six hundred sixty-one million, seven hundred three thousand, five hundred twenty".