65945863156 has 12 divisors (see below), whose sum is σ = 115407967780. Its totient is φ = 32972158080.

The previous prime is 65945863129. The next prime is 65945863163. The reversal of 65945863156 is 65136854956.

It can be written as a sum of positive squares in 2 ways, for example, as 8187354256 + 57758508900 = 90484^2 + 240330^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65945863156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26140 + ... + 364108.

Almost surely, 2^65945863156 is an apocalyptic number.

It is an amenable number.

65945863156 is a deficient number, since it is larger than the sum of its proper divisors (49462104624).

65945863156 is a wasteful number, since it uses less digits than its factorization.

65945863156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386754 (or 386752 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 58.

The spelling of 65945863156 in words is "sixty-five billion, nine hundred forty-five million, eight hundred sixty-three thousand, one hundred fifty-six".