55065616550615 has 16 divisors (see below), whose sum is σ = 72086949789696. Its totient is φ = 40047136816800.

The previous prime is 55065616550561. The next prime is 55065616550627. The reversal of 55065616550615 is 51605561656055.

55065616550615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-55065616550615 is a prime.

It is a super-2 number, since 2×55065616550615² (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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3481991 + ... + 11056920.

It is an arithmetic number, because the mean of its divisors is an integer number (4505434361856).

Almost surely, 2^{55065616550615} is an apocalyptic number.

55065616550615 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55065616550615 is a deficient number, since it is larger than the sum of its proper divisors (17021333239081).

55065616550615 is a wasteful number, since it uses less digits than its factorization.

55065616550615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14607790.

The product of its (nonzero) digits is 20250000, while the sum is 56.

The spelling of 55065616550615 in words is "fifty-five trillion, sixty-five billion, six hundred sixteen million, five hundred fifty thousand, six hundred fifteen".