66410133125290 has 8 divisors (see below), whose sum is σ = 119538239625540. Its totient is φ = 26564053250112.

The previous prime is 66410133125267. The next prime is 66410133125293. The reversal of 66410133125290 is 9252133101466.

It can be written as a sum of positive squares in 2 ways, for example, as 63448887561361 + 2961245563929 = 7965481^2 + 1720827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66410133125293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3320506656255 + ... + 3320506656274.

Almost surely, 2^{66410133125290} is an apocalyptic number.

66410133125290 is a deficient number, since it is larger than the sum of its proper divisors (53128106500250).

66410133125290 is a wasteful number, since it uses less digits than its factorization.

66410133125290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641013312536.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 66410133125290 in words is "sixty-six trillion, four hundred ten billion, one hundred thirty-three million, one hundred twenty-five thousand, two hundred ninety".