67564521116 has 6 divisors (see below), whose sum is σ = 118237911960. Its totient is φ = 33782260556.

The previous prime is 67564521091. The next prime is 67564521139. The reversal of 67564521116 is 61112546576.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8445565136 + ... + 8445565143.

It is an arithmetic number, because the mean of its divisors is an integer number (19706318660).

Almost surely, 2^67564521116 is an apocalyptic number.

It is an amenable number.

67564521116 is a deficient number, since it is larger than the sum of its proper divisors (50673390844).

67564521116 is a wasteful number, since it uses less digits than its factorization.

67564521116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16891130283 (or 16891130281 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The spelling of 67564521116 in words is "sixty-seven billion, five hundred sixty-four million, five hundred twenty-one thousand, one hundred sixteen".