65541265120166 has 16 divisors (see below), whose sum is σ = 107416658614608. Its totient is φ = 29745007564800.

The previous prime is 65541265120147. The next prime is 65541265120217. The reversal of 65541265120166 is 66102156214556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2323814615 + ... + 2323842818.

It is an arithmetic number, because the mean of its divisors is an integer number (6713541163413).

Almost surely, 2^{65541265120166} is an apocalyptic number.

65541265120166 is a deficient number, since it is larger than the sum of its proper divisors (41875393494442).

65541265120166 is a wasteful number, since it uses less digits than its factorization.

65541265120166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647658087.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 65541265120166 in words is "sixty-five trillion, five hundred forty-one billion, two hundred sixty-five million, one hundred twenty thousand, one hundred sixty-six".