65443799949228 has 96 divisors (see below), whose sum is σ = 172565572435200. Its totient is φ = 21442286573568.

The previous prime is 65443799949139. The next prime is 65443799949271. The reversal of 65443799949228 is 82294999734456.

It is a happy number.

65443799949228 is a `hidden beast` number, since 6 + 5 + 4 + 4 + 37 + 9 + 99 + 492 + 2 + 8 = 666.

It is a Smith number, since the sum of its digits (81) coincides with the sum of the digits of its prime factors.

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, 52829676 + ... + 54054252.

It is an arithmetic number, because the mean of its divisors is an integer number (1797558046200).

Almost surely, 2^{65443799949228} 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 65443799949228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86282786217600).

65443799949228 is an abundant number, since it is smaller than the sum of its proper divisors (107121772485972).

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

65443799949228 is a wasteful number, since it uses less digits than its factorization.

65443799949228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233036 (or 1233028 counting only the distinct ones).

The product of its digits is 8465264640, while the sum is 81.

The spelling of 65443799949228 in words is "sixty-five trillion, four hundred forty-three billion, seven hundred ninety-nine million, nine hundred forty-nine thousand, two hundred twenty-eight".