65000005066556 has 36 divisors (see below), whose sum is σ = 132550765699968. Its totient is φ = 27808865699328.

The previous prime is 65000005066543. The next prime is 65000005066559. The reversal of 65000005066556 is 65566050000056.

It is a super-2 number, since 2×65000005066556² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65000005066559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287263580 + ... + 287489763.

It is an arithmetic number, because the mean of its divisors is an integer number (3681965713888).

Almost surely, 2^{65000005066556} is an apocalyptic number.

It is an amenable number.

65000005066556 is an abundant number, since it is smaller than the sum of its proper divisors (67550760633412).

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

65000005066556 is a wasteful number, since it uses less digits than its factorization.

65000005066556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574753938 (or 574753929 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 65000005066556 in words is "sixty-five trillion, five million, sixty-six thousand, five hundred fifty-six".