65487227328 has 140 divisors (see below), whose sum is σ = 195211918440. Its totient is φ = 21706818048.

The previous prime is 65487227321. The next prime is 65487227341. The reversal of 65487227328 is 82372278456.

65487227328 is a `hidden beast` number, since 6 + 548 + 7 + 2 + 2 + 73 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65487227321) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 892650 + ... + 963222.

It is an arithmetic number, because the mean of its divisors is an integer number (1394370846).

Almost surely, 2^65487227328 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 65487227328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97605959220).

65487227328 is an abundant number, since it is smaller than the sum of its proper divisors (129724691112).

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

65487227328 is a wasteful number, since it uses less digits than its factorization.

65487227328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70776 (or 70757 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 54.

The spelling of 65487227328 in words is "sixty-five billion, four hundred eighty-seven million, two hundred twenty-seven thousand, three hundred twenty-eight".