65516650120650 has 48 divisors (see below), whose sum is σ = 162482755063104. Its totient is φ = 17470949412480.

The previous prime is 65516650120577. The next prime is 65516650120693. The reversal of 65516650120650 is 5602105661556.

It is a self number, because there is not a number n which added to its sum of digits gives 65516650120650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15252174 + ... + 19069926.

It is an arithmetic number, because the mean of its divisors is an integer number (3385057397148).

Almost surely, 2^{65516650120650} is an apocalyptic number.

65516650120650 is an abundant number, since it is smaller than the sum of its proper divisors (96966104942454).

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

65516650120650 is a wasteful number, since it uses less digits than its factorization.

65516650120650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932175 (or 3932170 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 48.

The spelling of 65516650120650 in words is "sixty-five trillion, five hundred sixteen billion, six hundred fifty million, one hundred twenty thousand, six hundred fifty".