60641721216 has 96 divisors (see below), whose sum is σ = 174624255000. Its totient is φ = 20199846912.

The previous prime is 60641721191. The next prime is 60641721221. The reversal of 60641721216 is 61212714606.

60641721216 is a `hidden beast` number, since 6 + 0 + 6 + 417 + 21 + 216 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1709290 + ... + 1744406.

Almost surely, 2^60641721216 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 60641721216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87312127500).

60641721216 is an abundant number, since it is smaller than the sum of its proper divisors (113982533784).

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

60641721216 is a wasteful number, since it uses less digits than its factorization.

60641721216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36636 (or 36621 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 60641721216 in words is "sixty billion, six hundred forty-one million, seven hundred twenty-one thousand, two hundred sixteen".