65147840652 has 24 divisors (see below), whose sum is σ = 152944219456. Its totient is φ = 21582719568.

The previous prime is 65147840617. The next prime is 65147840671. The reversal of 65147840652 is 25604874156.

It is a super-2 number, since 2×65147840652² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16651378 + ... + 16655289.

Almost surely, 2^65147840652 is an apocalyptic number.

It is an amenable number.

65147840652 is an abundant number, since it is smaller than the sum of its proper divisors (87796378804).

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

65147840652 is a wasteful number, since it uses less digits than its factorization.

65147840652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33306837 (or 33306835 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 65147840652 in words is "sixty-five billion, one hundred forty-seven million, eight hundred forty thousand, six hundred fifty-two".