65987320126 has 16 divisors (see below), whose sum is σ = 121822745184. Its totient is φ = 26104873824.

The previous prime is 65987320123. The next prime is 65987320211. The reversal of 65987320126 is 62102378956.

It is a super-2 number, since 2×65987320126² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65987320126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65987320123) 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, 181283665 + ... + 181284028.

It is an arithmetic number, because the mean of its divisors is an integer number (7613921574).

Almost surely, 2^65987320126 is an apocalyptic number.

65987320126 is a deficient number, since it is larger than the sum of its proper divisors (55835425058).

65987320126 is a wasteful number, since it uses less digits than its factorization.

65987320126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362567715.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 65987320126 in words is "sixty-five billion, nine hundred eighty-seven million, three hundred twenty thousand, one hundred twenty-six".