66484145 has 32 divisors (see below), whose sum is σ = 102477312. Its totient is φ = 40246272.

The previous prime is 66484133. The next prime is 66484147. The reversal of 66484145 is 54148466.

It is a cyclic number.

It is not a de Polignac number, because 66484145 - 2¹⁴ = 66467761 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 66484099 and 66484108.

It is not an unprimeable number, because it can be changed into a prime (66484147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7289 + ... + 13641.

It is an arithmetic number, because the mean of its divisors is an integer number (3202416).

Almost surely, 2^66484145 is an apocalyptic number.

66484145 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

66484145 is a deficient number, since it is larger than the sum of its proper divisors (35993167).

66484145 is a wasteful number, since it uses less digits than its factorization.

66484145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401.

The product of its digits is 92160, while the sum is 38.

The square root of 66484145 is about 8153.7810247762. The cubic root of 66484145 is about 405.1097502695.

The spelling of 66484145 in words is "sixty-six million, four hundred eighty-four thousand, one hundred forty-five".