66067760756165 has 24 divisors (see below), whose sum is σ = 92565515215872. Its totient is φ = 45136435347360.

The previous prime is 66067760756131. The next prime is 66067760756177. The reversal of 66067760756165 is 56165706776066.

66067760756165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66067760756165 - 2¹⁶ = 66067760690629 is a prime.

It is a super-2 number, since 2×66067760756165² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66067760756095 and 66067760756104.

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 23 ways as a sum of consecutive naturals, for example, 497469269 + ... + 497602058.

It is an arithmetic number, because the mean of its divisors is an integer number (3856896467328).

Almost surely, 2^{66067760756165} is an apocalyptic number.

It is an amenable number.

66067760756165 is a deficient number, since it is larger than the sum of its proper divisors (26497754459707).

66067760756165 is a wasteful number, since it uses less digits than its factorization.

66067760756165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995071617 (or 995071610 counting only the distinct ones).

The product of its (nonzero) digits is 400075200, while the sum is 68.

The spelling of 66067760756165 in words is "sixty-six trillion, sixty-seven billion, seven hundred sixty million, seven hundred fifty-six thousand, one hundred sixty-five".