65712734652 has 24 divisors (see below), whose sum is σ = 153336871296. Its totient is φ = 21903222448.

The previous prime is 65712734651. The next prime is 65712734669. The reversal of 65712734652 is 25643721756.

65712734652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65712734652² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65712734651) 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, 167233 + ... + 399239.

It is an arithmetic number, because the mean of its divisors is an integer number (6389036304).

Almost surely, 2^65712734652 is an apocalyptic number.

It is an amenable number.

65712734652 is an abundant number, since it is smaller than the sum of its proper divisors (87624136644).

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

65712734652 is a wasteful number, since it uses less digits than its factorization.

65712734652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255617 (or 255615 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 48.

The spelling of 65712734652 in words is "sixty-five billion, seven hundred twelve million, seven hundred thirty-four thousand, six hundred fifty-two".