65111651652 has 24 divisors (see below), whose sum is σ = 160864081056. Its totient is φ = 20427184768.

The previous prime is 65111651639. The next prime is 65111651659. The reversal of 65111651652 is 25615611156.

It is a self number, because there is not a number n which added to its sum of digits gives 65111651652.

It is not an unprimeable number, because it can be changed into a prime (65111651659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159587178 + ... + 159587585.

It is an arithmetic number, because the mean of its divisors is an integer number (6702670044).

Almost surely, 2^65111651652 is an apocalyptic number.

It is an amenable number.

65111651652 is an abundant number, since it is smaller than the sum of its proper divisors (95752429404).

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

65111651652 is a wasteful number, since it uses less digits than its factorization.

65111651652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319174787 (or 319174785 counting only the distinct ones).

The product of its digits is 54000, while the sum is 39.

The spelling of 65111651652 in words is "sixty-five billion, one hundred eleven million, six hundred fifty-one thousand, six hundred fifty-two".