65016039450240 has 256 divisors, whose sum is σ = 230623289769600. Its totient is φ = 17310643937280.

The previous prime is 65016039450233. The next prime is 65016039450289. The reversal of 65016039450240 is 4205493061056.

65016039450240 is a `hidden beast` number, since 6 + 5 + 0 + 16 + 0 + 3 + 94 + 502 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8185300 + ... + 14036780.

Almost surely, 2^{65016039450240} is an apocalyptic number.

65016039450240 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 65016039450240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115311644884800).

65016039450240 is an abundant number, since it is smaller than the sum of its proper divisors (165607250319360).

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

65016039450240 is a wasteful number, since it uses less digits than its factorization.

65016039450240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5852152 (or 5852134 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 65016039450240 in words is "sixty-five trillion, sixteen billion, thirty-nine million, four hundred fifty thousand, two hundred forty".