60021321408 has 140 divisors (see below), whose sum is σ = 178032472992. Its totient is φ = 19994688000.

The previous prime is 60021321407. The next prime is 60021321421. The reversal of 60021321408 is 80412312006.

60021321408 is a `hidden beast` number, since 600 + 2 + 13 + 2 + 1 + 40 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (60021321401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12631033 + ... + 12635783.

Almost surely, 2^60021321408 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 60021321408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89016236496).

60021321408 is an abundant number, since it is smaller than the sum of its proper divisors (118011151584).

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

60021321408 is a wasteful number, since it uses less digits than its factorization.

60021321408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7212 (or 7193 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 60021321408 in words is "sixty billion, twenty-one million, three hundred twenty-one thousand, four hundred eight".