60664507816 has 16 divisors (see below), whose sum is σ = 124086493440. Its totient is φ = 27574776240.

The previous prime is 60664507807. The next prime is 60664507843. The reversal of 60664507816 is 61870546606.

It is a self number, because there is not a number n which added to its sum of digits gives 60664507816.

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, 344684616 + ... + 344684791.

It is an arithmetic number, because the mean of its divisors is an integer number (7755405840).

Almost surely, 2^60664507816 is an apocalyptic number.

It is an amenable number.

60664507816 is an abundant number, since it is smaller than the sum of its proper divisors (63421985624).

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

60664507816 is a wasteful number, since it uses less digits than its factorization.

60664507816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689369424 (or 689369420 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 60664507816 in words is "sixty billion, six hundred sixty-four million, five hundred seven thousand, eight hundred sixteen".