65201392128 has 80 divisors (see below), whose sum is σ = 181252881216. Its totient is φ = 20788838400.

The previous prime is 65201392121. The next prime is 65201392159. The reversal of 65201392128 is 82129310256.

It is not an unprimeable number, because it can be changed into a prime (65201392121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887473 + ... + 958128.

Almost surely, 2^65201392128 is an apocalyptic number.

It is an amenable number.

65201392128 is an abundant number, since it is smaller than the sum of its proper divisors (116051489088).

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

65201392128 is a wasteful number, since it uses less digits than its factorization.

65201392128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845645 (or 1845629 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 65201392128 in words is "sixty-five billion, two hundred one million, three hundred ninety-two thousand, one hundred twenty-eight".