66170755441 has 64 divisors (see below), whose sum is σ = 84713472000. Its totient is φ = 50384980800.

The previous prime is 66170755439. The next prime is 66170755451. The reversal of 66170755441 is 14455707166.

66170755441 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 66170755441 - 2¹ = 66170755439 is a prime.

It is a super-2 number, since 2×66170755441² (a number of 22 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 = 66170755391 and 66170755400.

It is not an unprimeable number, because it can be changed into a prime (66170755451) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43219846 + ... + 43221376.

It is an arithmetic number, because the mean of its divisors is an integer number (1323648000).

Almost surely, 2^66170755441 is an apocalyptic number.

It is an amenable number.

66170755441 is a deficient number, since it is larger than the sum of its proper divisors (18542716559).

66170755441 is a wasteful number, since it uses less digits than its factorization.

66170755441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 66170755441 in words is "sixty-six billion, one hundred seventy million, seven hundred fifty-five thousand, four hundred forty-one".