65565500156 has 12 divisors (see below), whose sum is σ = 123565750392. Its totient is φ = 30261000048.

The previous prime is 65565500149. The next prime is 65565500171. The reversal of 65565500156 is 65100556556.

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, 630437450 + ... + 630437553.

It is an arithmetic number, because the mean of its divisors is an integer number (10297145866).

Almost surely, 2^65565500156 is an apocalyptic number.

It is an amenable number.

65565500156 is a deficient number, since it is larger than the sum of its proper divisors (58000250236).

65565500156 is a wasteful number, since it uses less digits than its factorization.

65565500156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260875020 (or 1260875018 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 65565500156 in words is "sixty-five billion, five hundred sixty-five million, five hundred thousand, one hundred fifty-six".