65396128 has 48 divisors (see below), whose sum is σ = 148284864. Its totient is φ = 27809280.

The previous prime is 65396053. The next prime is 65396141. The reversal of 65396128 is 82169356.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29623 + ... + 31753.

It is an arithmetic number, because the mean of its divisors is an integer number (3089268).

Almost surely, 2^65396128 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 65396128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74142432).

65396128 is an abundant number, since it is smaller than the sum of its proper divisors (82888736).

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

65396128 is a wasteful number, since it uses less digits than its factorization.

65396128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285 (or 2277 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 65396128 is about 8086.7872483453. The cubic root of 65396128 is about 402.8877027651.

The spelling of 65396128 in words is "sixty-five million, three hundred ninety-six thousand, one hundred twenty-eight".