65271187968 has 160 divisors (see below), whose sum is σ = 199952011776. Its totient is φ = 18534002688.

The previous prime is 65271187967. The next prime is 65271187987. The reversal of 65271187968 is 86978117256.

It is not an unprimeable number, because it can be changed into a prime (65271187967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1733955 + ... + 1771197.

Almost surely, 2^65271187968 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 65271187968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99976005888).

65271187968 is an abundant number, since it is smaller than the sum of its proper divisors (134680823808).

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

65271187968 is a wasteful number, since it uses less digits than its factorization.

65271187968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37434 (or 37418 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 60.

The spelling of 65271187968 in words is "sixty-five billion, two hundred seventy-one million, one hundred eighty-seven thousand, nine hundred sixty-eight".