65550651610015 has 32 divisors (see below), whose sum is σ = 92739213697536. Its totient is φ = 43850533368960.

The previous prime is 65550651610007. The next prime is 65550651610043. The reversal of 65550651610015 is 51001615605556.

It is a happy number.

It is not a de Polignac number, because 65550651610015 - 2³ = 65550651610007 is a prime.

It is a super-2 number, since 2×65550651610015² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161775099 + ... + 162179788.

It is an arithmetic number, because the mean of its divisors is an integer number (2898100428048).

Almost surely, 2^{65550651610015} is an apocalyptic number.

65550651610015 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

65550651610015 is a deficient number, since it is larger than the sum of its proper divisors (27188562087521).

65550651610015 is a wasteful number, since it uses less digits than its factorization.

65550651610015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323955199.

The product of its (nonzero) digits is 675000, while the sum is 46.

The spelling of 65550651610015 in words is "sixty-five trillion, five hundred fifty billion, six hundred fifty-one million, six hundred ten thousand, fifteen".