65956716436 has 12 divisors (see below), whose sum is σ = 124303042612. Its totient is φ = 30441561408.

The previous prime is 65956716421. The next prime is 65956716439. The reversal of 65956716436 is 63461765956.

It can be written as a sum of positive squares in 2 ways, for example, as 36900104836 + 29056611600 = 192094^2 + 170460^2 .

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65956716439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634199145 + ... + 634199248.

Almost surely, 2^65956716436 is an apocalyptic number.

It is an amenable number.

65956716436 is a deficient number, since it is larger than the sum of its proper divisors (58346326176).

65956716436 is a wasteful number, since it uses less digits than its factorization.

65956716436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268398410 (or 1268398408 counting only the distinct ones).

The product of its digits is 24494400, while the sum is 58.

The spelling of 65956716436 in words is "sixty-five billion, nine hundred fifty-six million, seven hundred sixteen thousand, four hundred thirty-six".