65089904656 has 40 divisors (see below), whose sum is σ = 144874469504. Its totient is φ = 27751127040.

The previous prime is 65089904653. The next prime is 65089904669. The reversal of 65089904656 is 65640998056.

It is a self number, because there is not a number n which added to its sum of digits gives 65089904656.

It is not an unprimeable number, because it can be changed into a prime (65089904653) 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, 1483980 + ... + 1527211.

Almost surely, 2^65089904656 is an apocalyptic number.

It is an amenable number.

65089904656 is an abundant number, since it is smaller than the sum of its proper divisors (79784564848).

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

65089904656 is a wasteful number, since it uses less digits than its factorization.

65089904656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011399 (or 3011393 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 58.

The spelling of 65089904656 in words is "sixty-five billion, eighty-nine million, nine hundred four thousand, six hundred fifty-six".