65066506616 has 64 divisors (see below), whose sum is σ = 124956820800. Its totient is φ = 31755829248.

The previous prime is 65066506607. The next prime is 65066506619. The reversal of 65066506616 is 61660566056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65066506619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34738256 + ... + 34740128.

It is an arithmetic number, because the mean of its divisors is an integer number (1952450325).

Almost surely, 2^65066506616 is an apocalyptic number.

It is an amenable number.

65066506616 is a deficient number, since it is larger than the sum of its proper divisors (59890314184).

65066506616 is a wasteful number, since it uses less digits than its factorization.

65066506616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 65066506616 in words is "sixty-five billion, sixty-six million, five hundred six thousand, six hundred sixteen".