65141663664 has 160 divisors (see below), whose sum is σ = 210215831040. Its totient is φ = 16886937600.

The previous prime is 65141663641. The next prime is 65141663677. The reversal of 65141663664 is 46636614156.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 1908702 + ... + 1942530.

It is an arithmetic number, because the mean of its divisors is an integer number (1313848944).

Almost surely, 2^65141663664 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 65141663664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105107915520).

65141663664 is an abundant number, since it is smaller than the sum of its proper divisors (145074167376).

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

65141663664 is a wasteful number, since it uses less digits than its factorization.

65141663664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34379 (or 34373 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 48.

The spelling of 65141663664 in words is "sixty-five billion, one hundred forty-one million, six hundred sixty-three thousand, six hundred sixty-four".